Closure
What the fuck.
Eren backed away from the several people that seemed to be divided in groups. Some of them were wearing white dresses or pants with a light-purple robe that was snug tight onto their bodies with something that looked like straw. The other half had different clothes, varying from dresses, soldier-like outfits or just normal clothes.
In other words, Eren thinks he is going batshit crazy.
"Kid, listen," a woman with long, auburn hair and steely eyes wearing a somewhat revealing dress that was split down at the front attempted to calm him down with a gruff voice, "Ymir, that other kid technically told you about us so—"
"WHO ARE YOU PEOPLE!?"
The woman smacked her forehead as everyone winced at Eren's loud voice, "The slaves—" the ones clad in white began to protest that they weren't slaves at all. The ones that weren't wearing the same outfits as they were shouted at them that yes, they were slaves since they were following Karl's will. The woman waited until it was silent to then continued from where she left off, "—In white are the ones that are the former hosts of the Founding Titan."
". . . So the rest of you are the Attack Titan's hosts."
"Yup," she says, popping the 'p'. She suddenly went towards the middle and came out and dragged—
His—
That is—
That's his dad!
"Yo, Grisha," she says, pointing at Eren. "Go talk to your fucking son already and give him some damn closure." She then introduced herself as Marianna before ushering everyone out somehow.
Both of them were silent for a few minutes before Eren spoke up.
". . . You were running out of time, weren't you, dad?"
Grisha nodded in response. His eyes were downcast, showing nothing but complete remorse for what he had done, "I forced you to inherit both of the Attack and Founding Titan's because I stole it from the royal family. I ate Frieda and I killed everyone else."
Eren's eyes went wide before he grabbed his Father by the collar, "Why! Why did you do it!? Why did you kill them? You could've spared them!"
Grisha stayed silent before explaining.
"All of them are bound to the will. I begged and pleaded for them to help as the walls came crashing down. They wouldn't listen."
(He can't tell his son that his future self came and forced his hand. He can't tell him that Grisha is a puppet being forced to do this. He only wanted a life with his new family, new love, new life.)
"I'm sorry, Eren," Grisha is at his knees now, holding Eren by his shoulders, "Nothing I did excuses for what happened. I forced you to eat me. I injected the serum into you. I'm sorry, I'm sorry, I'm so sorry—"
(Failure of a first husband. Abused his son by forcing ideals upon him. He tried to make up for it. Zeke wouldn't know, Zeke wouldn't hear him saying his name in his sleep. The several apologies Grisha has said. Only Eren would.)
He's stopped by a hug. It's his youngest son, holding him tightly. No words are said, but the language of Eren's body and the small shake of his shoulders is enough to say that Eren was on the verge of crying as well.
And that.
That was all Grisha needed for a answer.