Dazai Osamu (Bungou Stray Dogs) & Severus Snape FanFiction

O Children (Lost Secrets)

O Children (Lost Secrets)

Gen
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Molly Weasley, Albus Dumbledore, Dazai Osamu (Bungou Stray Dogs), Mori Ougai (Bungou Stray Dogs), Weasley Family (Harry Potter), Dazai Osamu & Mori Ougai (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Severus Snape, Dazai Osamu (Bungou Stray Dogs) & Draco Malfoy,
Tags
No beta we die like Odasaku I HAVE NOT READ MAGIC AND MYSTERY tags will be added as the story progresses no beta we die like Hedwig
Dazai Osamu is sent to Hogwarts[Formerly— Lost Secrets (I could never speak)]If you have not read the tags, I HAVE NOT READ MAGIC AND MYSTERY, nor do I plan to until I am done writing this. Any similarities between the stories are accidental. All I k...
Dazai as Harry Potter😱!!?

Dazai as Harry Potter😱!!?

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Albus Dumbledore, Voldemort (Harry Potter), Nakahara Chuuya (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs), Mori Ougai (Bungou Stray Dogs), Dazai Osamu & Nakahara Chuuya (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Severus Snape
Tags
Mentioned Minerva McGonagall
i’m horible at summaries but basically dazai IS harry potter or wtv?? basically🤓☝️, Mori somehow ennded up with Dazai, 😱😱!!? erm, basically js the cannon story for the time being. Zai in Maffia or wtv!!! (dazai looks like dazai btw. just wanna pre...
Double Black is Back

Double Black is Back

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Nakahara Chuuya (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs), Pansy Parkinson, Dazai Osamu/Nakahara Chuuya (Bungou Stray Dogs), Ozaki Kouyou (Bungou Stray Dogs),
Tags
Slow Burn Pedophilia Soukoku | Double Black (Bungou Stray Dogs) Dazai Osamu Returns to the Port Mafia (Bungou Stray Dogs) Port Mafia Boss Dazai Osamu (Bungou Stray Dogs) Inspired by Magic and Mystery Series - Allegory_for_Hatred Dazai Osamu and Nakahara Chuuya Are Soulmates (Bungou Stray Dogs)
Dazai Osamu was with the port mafia until he was 18 and then joined the armed detective agency. Before all of that, he went to a magical school, Hogwarts. He had to learn to navigate through his time at Hogwarts. The summer before his third year, Chu...
The Most Beautiful of Ghosts

The Most Beautiful of Ghosts

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Dazai Osamu & Mori Ougai (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape, Dazai Osamu (Bungou Stray Dogs) & Hermione Granger
Tags
Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Suffering Dazai Osamu (Bungou Stray Dogs) Dazai Osamu is a Mess (Bungou Stray Dogs) Dazai Osamu Needs a Hug (Bungou Stray Dogs) Mentioned Mori Ougai (Bungou Stray Dogs) Dazai Osamu is Bad at Feelings (Bungou Stray Dogs) Mori Ougai Being an Asshole (Bungou Stray Dogs) Bad Person Mori Ougai (Bungou Stray Dogs) Good Blaise Zabini Good Severus Snape Protective Fred Weasley & George Weasley Protective Severus Snape
"Are you sure these will work, Mori?" Mori turned to Dazai with his usual slimy grin."Of course, Dazai-kun, don't worry about it." Or... During his third year at Hogwarts, Dazai is diagnosed with schizophrenia. Of course, Mori doesn't help much, and...
Matches and Candlesticks

Matches and Candlesticks

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Remus Lupin, Sirius Black, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Fred Weasley, George Weasley, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Pansy Parkinson,
Tags
Self-Harm Implied/Referenced Child Abuse Bullying Crossovers & Fandom Fusions Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Eating Disorder Not Otherwise Specified Port Mafia Member Dazai Osamu (Bungou Stray Dogs) Young Dazai Osamu (Bungou Stray Dogs) A fanfic of a fanfic
He had no doubts anymore.This was the demon student.The one who would start another war.And there was no way Sirius would let him.Not after everything he’d lost.OrDazai attends his 3rd year at Hogwarts, with his friends. Everything would be normal, b...
Look of love

Look of love

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Kunikida Doppo (Bungou Stray Dogs), Dazai Osamu/Kunikida Doppo (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape,
Tags
Friends to Lovers Dazai Osamu is Whipped (Bungou Stray Dogs) what am i even doing? kunikidazai my love Pretty Dazai Osamu (Bungou Stray Dogs)
Just as Dazai was about to leave when something caught his attention.Since when is that blonde guy going to hogwarts?OrKunikidazai’s first meeting in hogwarts and how their relationship changes with time
Red and Black

Red and Black

Gen
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Minerva McGonagall, Severus Snape, Draco Malfoy, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Draco Malfoy & Ron Weasley, Weasley Family (Harry Potter), Dazai Osamu (Bungou Stray Dogs) & Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape, Dazai Osamu (Bungou Stray Dogs) & Draco Malfoy, Dazai Osamu (Bungou Stray Dogs) & Fred Weasley, Dazai Osamu (Bungou Stray Dogs) & George Weasley,
Tags
Self-Harm Implied/Referenced Self-Harm Implied/Referenced Child Abuse Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Dazai Osamu is a Mess (Bungou Stray Dogs) Dazai Osamu Needs a Hug (Bungou Stray Dogs) Eating Disorder Not Otherwise Specified
Work in progress of Magic and Mystery year three
Blossoming Roses

Blossoming Roses

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Remus Lupin, Sirius Black, Peter Pettigrew, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Lucius Malfoy, Ginny Weasley, Tom Riddle | Voldemort, Molly Weasley, Arthur Weasley,
Tags
Grooming Blood and Gore Implied/Referenced Suicide Self-Harm Implied/Referenced Child Abuse Dead Dove: Do Not Eat Character Development Hogwarts Denial of Feelings Crossovers & Fandom Fusions Hogwarts Third Year Inspired by Magic and Mystery Series - Allegory_for_Hatred
Dazai's third year at Hogwarts has finally come, and quite unexpectedly at that. A pang of relief blossomed in his chest once Mori informed him of the news, he hated it. Why must his traitorous heart beat for such trivial things? Nonetheless, beat at...
A Series of Meetings

A Series of Meetings

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Dazai Osamu (Bungou Stray Dogs), Sakaguchi Ango (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Severus Snape
Tags
Other Additional Tags to Be Added Severus Snape Has a Heart Good Severus Snape
Years have passed, and with it, so have tears.Regrets were shared, and so were memories.Loss, grief, and battles scars ripped across everyone.And they all had the same idea; what happened to Osamu?Or, the Hell’s Hounds and others meet Dazai for the f...
Of Mafia-Black Blood

Of Mafia-Black Blood

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Fyodor Dostoyevsky (Bungou Stray Dogs), Pansy Parkinson, Dazai Osamu (Bungou Stray Dogs) & Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape
Tags
uh.. Stupidity Canon Continuation Kindle
**THIS IS A UNOFFICIAL CONTINUATION OF MAGIC AND MYSTERY BY ALLEGORY**Ah, Hogwarts. The wizarding worldz last defense.And its greatest threat was within it.
Deceptions

Deceptions

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Gilderoy Lockhart, Dazai Osamu (Bungou Stray Dogs), Pansy Parkinson, Poppy Pomfrey,
Tags
Fluff Angst Fear of Death Self-Harm Implied/Referenced Self-Harm Implied/Referenced Child Abuse Bullying Child Neglect Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Eating Disorder Not Otherwise Specified
"I never knew how he truly perceived me. At times it made me angry, others, it made me blush. Yet it was never obvious what my actions truly meant... I wonder if he even knows what is truly in my heart."A bunch of one shots of these two cuties :3
The Same Old Song and Dance

The Same Old Song and Dance

G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Fred Weasley, George Weasley, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Pansy Parkinson, Mori Ougai (Bungou Stray Dogs), Poppy Pomfrey,
Tags
Father-Son Relationship Hurt/Comfort Self-Harm Suicide Attempt Guilt Self-Worth Issues Self Confidence Issues Overthinking Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Dazai Osamu Needs a Hug (Bungou Stray Dogs) Dazai-Typical Suicide Attempts (Bungou Stray Dogs)
Dazai’s thoughts overtake him and he decides to try ending it all once again. After all, Mori isn’t here to stop him this time.If Mori isn’t here to stop him, who will?
dazai and his group chats // a magic and mystery chatfic

dazai and his group chats // a magic and mystery chatfic

Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Nakahara Chuuya (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs), Pansy Parkinson, Dazai Osamu/Nakahara Chuuya (Bungou Stray Dogs),
Tags
Not Canon Compliant Implied Sexual Content Implied/Referenced Child Abuse How Do I Tag Chatting & Messaging chatfic Dazai-Typical Suicide Mentions (Bungou Stray Dogs) Eating Disorder Not Otherwise Specified Very OOC tags will be added as I go Severus Snape is So Done dazai is a mess
dazai and his lovely little group chats... what could ever happen??takes place in the Magic and Mystery/Coil universe
I Think I'll Take My Whiskey Neat, My Coffee Black and My Bed at Three. You're too Sweet for Me...(A Magic and Mystery/Coil fic)

I Think I'll Take My Whiskey Neat, My Coffee Black and My Bed at Three. You're too Sweet for Me...(A Magic and Mystery/Coil fic)

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Albus Dumbledore, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Poppy Pomfrey, Dazai Osamu (Bungou Stray Dogs) & Blaise Zabini, Dazai Osamu (Bungou Stray Dogs)/Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape, Dazai Osamu (Bungou Stray Dogs) & Poppy Pomfrey, Dazai Osamu (Bungou Stray Dogs) & The Hell's Hounds, The Hell's Hounds, (their only mentioned briefly)
Tags
Hurt/Comfort Tooth-Rotting Fluff Past Rape/Non-con Manipulation Childhood Trauma Not Beta Read Cuddling & Snuggling Pedophilia Sleepy Cuddles Stockholm Syndrome Albus Dumbledore Bashing Romantic Fluff
Dazai's incessant yapping leads him to accidentally spill some secrets about Mori.Fluff ensues!!!!
Through The Veil

Through The Veil

F/M
Gen
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Harry Potter, Other Relationship Tags to Be Added, Sirius Black, Minerva McGonagall, Severus Snape, Ron Weasley, Hermione Granger, Ginny Weasley, Fred Weasley, George Weasley, Albus Dumbledore, Blaise Zabini,
Tags
Angst Depression Suicidal Thoughts Heavy Angst Character Death Hurt/Comfort Self-Harm Implied/Referenced Child Abuse Manipulation Trauma Harry Potter Needs a Hug Port Mafia (Bungou Stray Dogs)
Dazai really doesn't know what he did in a past life to deserve this, maybe it had more to do with what he was doing in this life, but getting sent on a mission across the world hadn't been on his bucket list. With his magical powers growing dangerou...
candlelit hallways

candlelit hallways

Gen
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Dazai Osamu (Bungou Stray Dogs), Dazai Osamu (Bungou Stray Dogs) & Severus Snape
Tags
Angst Hurt/Comfort Emotional Hurt/Comfort Implied/Referenced Self-Harm Implied/Referenced Child Abuse Crossovers & Fandom Fusions Young Dazai Osamu (Bungou Stray Dogs) Child Dazai Osamu (Bungou Stray Dogs) no beta we die like poppy
“Whenever these urges to hurt yourself arise, I need you to seek out a professor. Preferably either myself or Madam Pomfrey.”That’s what Snape had said at some point during his first year at Hogwarts.Looking down at his bleeding arms, Dazai didn’t th...
Soukoku Wizard Shenanigans

Soukoku Wizard Shenanigans

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Neville Longbottom, Fred Weasley, George Weasley, Albus Dumbledore, Blaise Zabini, Luna Lovegood,
Tags
I'm not naming every relationship but I am naming every character Mentioned Ozaki Kouyou (Bungou Stray Dogs) Mentioned Arahabaki (Bungou Stray Dogs) I love Arahabaki and I'm sorry I hc Arahabaki crushing on Dazai Omg this is actually a lot of tags Inspired by Magic & Mystery Inspired by Coil
Fourth year of Magic and Mystery and CoilInspired by Magic and MysteryInspired by Coil(Different AU)May discontinue (I just want to post a few chapters to get it out of my head)
Roommates...

Roommates...

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Fred Weasley, George Weasley, Blaise Zabini, Luna Lovegood, Dazai Osamu (Bungou Stray Dogs), Mori Ougai (Bungou Stray Dogs), Poppy Pomfrey,
Summary:I literally don't know what to put here-
Burning the Candle at Both Ends (A Magic and Mystery/ Coil fic)

Burning the Candle at Both Ends (A Magic and Mystery/ Coil fic)

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Original Female Character(s), Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Hermione Granger/Ron Weasley, Pansy Parkinson, Mori Ougai (Bungou Stray Dogs),
Tags
Suicidal Thoughts Medical Trauma Heavy Angst Blood and Gore Past Rape/Non-con Post-Traumatic Stress Disorder - PTSD It Gets Worse Before It Gets Better Angst and Hurt/Comfort Past Torture Self-Harm Adoption Blood and Violence
“No.”The word felt foreign on Dazai’s lips and even more foreign to Mori’s ears“What did you just say to me, Shuji-kun?” Mori asked, half threatening, half genuine.“I said no. I'm not going to kill him. He didn’t do anything wrong!” Dazai shouted----...
Chaos Theory - Magic and Mystery (FUSE!)

Chaos Theory - Magic and Mystery (FUSE!)

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling 文豪ストレイドッグス | Bungou Stray Dogs
Characters
Severus Snape, Blaise Zabini, Dazai Osamu (Bungou Stray Dogs), Rita Skeeter, Dazai Osamu (Bungou Stray Dogs)/Blaise Zabini, Dazai Osamu (Bungou Stray Dogs) & Severus Snape
Tags
Fluff Out of Character Alternate Universe Crossovers & Fandom Fusions Dazai Osamu Needs a Hug (Bungou Stray Dogs) Dazai Osamu is a Little Shit (Bungou Stray Dogs) Severus Snape is So Done No beta we died like odasaku did
"..Are you ready, Dazai-san?""Ready as I ever be."Or: me combining two of my favorite fanfics together.Got this idea from the magic and mystery discord server (thanks to those who enjoyed it! You guys are swell >.<) And I can't hold the urge an...