Outside
Tobirama sat in Seishū's hut, supremely bored. For some odd reason, the healer insisted on monitoring him until he was completely healed.
So, he began to fill his days with meditation and chi exercises. As it turns out, chi is somewhat similar to chakra in it's basic applications - it flowed through the body in a complex system with certain points where it formed, pooled, or split.
Theoretically speaking, chi blocking is quite possible - but that's an experiment for later.
As for forming chi - it's able to move around freely within the body. He suspects he could utilize most of the basic skills from his time as a shinobi - water walking, wall walking, strength enhancement, etc.. Fuinjutsu may be possible as well, though one's own blood would be needed for both production and application of the seals.
Which brought Tobirama to his next point. A person's chi cannot leave their own biological material. However, everything in this world has chi. Said chi is capable of interacting with other chi - sort of like a kinetic energy transfer. Which is how bending works - a person forms chi within their body in a certain way to interact with the chi outside the body, thus gaining a reaction from it's specific element.
Maybe naturally occurring chi could be harnessed in come way.....? Whatever, that's a later problem.
But that's where the over the top bending forms come in - while this world might have more advanced technology, they're sorely lacking in the scientific areas. As such, they do not know how chi actually works, and rely on movements that mirror their element, instead of the other way around.
This then brought Tobirama to his next question: could a person besides the Avatar bend more than one element? How about non-benders?
The short answer? No.
A person's chi is like their DNA, it's not just a recommendation like chakra natures were.
But, once more entirely theoretical, non-benders should be able to harness the basic applications.
These facts alone led to near-endless possibilities.
Tobirama was giddy at the thought.
The high spirits, who were interrupted in the middle of game night when a certain human's thoughts interrupted them, observed the albino boy, horrified.
Dangun slowly looked around at the other seven seated around him, "Do you...... know this mortal?"
Vayu - who was always infuriated by the spirit of the earth for reasons that escaped him - sent a needlessly violent wind his way, effectively removing his cards from his hands, "Yes. Though I will admit he hasn't done....... this before."
Tui, with her head on La's lap, sighed melodramatically, "Our little boy's growing up."
Two entities called Kali and Sang-je - the spirits of time and death, and space; respectively - tilted their head in eerie unison.
"The blue-soul boy is clever." Said Kali, the golden rings around their head humming in a way that seemed to resonate within the skulls of all who heard it.
"He was summoned for a reason." Sang-je added, blue robes floating around them like gravity was little more than a vague recommendation.
"A good mind and better heart." Kali continued.
"But lacks much. That is why red-passion boy is here." Sang-je added on.
"They complete each other." They finished in unison.
Nügua nodded, her serpentine lower body swishing about to collect the cards her husband had lost, "I see."
Dangun pressed a kiss to the serpent-woman's cheek as he got his cards back.
Tui and La exchanged a look, "So you're saying that they're-"
Every other spirit present groaned.
Finally, finally, Seishū decided that Tobirama was able to leave the hut - without supervision! - after being stuck inside for a month.
It's not like he could've snuck out, either. He knew better than to piss off a healer. All of a sudden your bandages are uncomfortably tight and your medicine is just a tad too bitter.
And he's also pretty sure that the rabbit is secretly a spirit in disguise. Tobirama was experimenting with chi sensing, and the thing felt weird.
Speaking of experiments, he'll need to figure out how waterbenders do that whole healing thing. Bring albino, his eyes were already bad enough - growing up at the South Pole didn't help, either.
Yeah, it might end up being a problem if he doesn't do something about it.
That aside, Tobirama was - at the moment - quite pleased with how chi-enhanced movements worked out. He was actively jumping through the trees almost exactly like he could in his old life, testing out his newfound sending ability as well. He found a lone chi signature in the woods - it felt like a young girl, non-bender, practicing kata. The signature reminded him of his cousin, Toka - fierce and determined, and not to be tried under any circumstance.
Naturally, he headed towards it.
Tobirama crouched in a tree, watching a girl - perhaps twelve or thirteen - run through a kata with a pair of fans. He observed for some time, assessing the way she moved and figuring out what the kata would look like when performed by someone more experienced.
"Try to raise your center of gravity."
She whipped around at the sound of his voice, tripping over a tree root in the process.
Tobirama sighed and jumped from the tree - stumbling a bit, both from lying in bed for so horribly long and not quite being able to move the way he used to in his new body.
He offered a hand to help the girl up, but she rejected it, scrambling to her feet and taking a fighting stance, "Who are you? What are you on Kyoshi for?"
He hummed, eyes narrowed as he took a mental note, "I am Tobirama. I'm here for...... treatment. I've been here for around a month, truthfully. This is just the first time Seishū let me out."
The girls brows furrowed as she thought. A heartbeat later, she seemed to have come to a conclusion, "You're the one that the Water Tribe brought."
Tobirama arched a brow, "That is how I got here, yes. Although I remember none of it. That is, unfortunately, how unconsciousness works."
The child's suspicion didn't seem to lessen, "You don't look Water Tribe."
He sighed, "I was born what one would call albino. Meaning that my body is incapable of producing any melanin, or pigment. It doesn't happen often, but it's a completely natural phenomena."
The girl didn't say anything, so Tobirama continued, "Now, what is your name?"
Her eyes narrowed, "Suki."
Tobirama hummed in acknowledgment, "I see, Suki. Then, back to the reason on my intervention - that kata you were practicing. You should try to raise your center of gravity some."
Agni placed a card in the middle of the table, "Dear Raava, he likes children."
Vayu, seated to Agni's left, placed another card, "Were you expecting something else? Uno."
Dangun made an affronted sound before placing a card of his own.
Agni spoke again, "Not really, no. But I do mourn my sanity. My guess is that by the end of this year, I'll have drunk the spirit world's supply of wine."
Vayu sighed, pressing a kiss to his husband's temple to hide his smile, "This is the spirit world, my dear. We never run out of anything. Well, maybe patience, but that's a whole different matter."
Nügua raised a brow at the way her husband looked between her and the display. Taking pity on him, she offered a kiss - he was overjoyed, she could hear it - and placed down a reverse card.
Dangun shouted triumphantly, setting down a draw four, "Green!"
Vayu glared, not taking his eyes from the earth spirit as he drew the required cards with deliberate movements.
Agni chuckled, glancing to his right as he played a reverse, "Sorry Kali, Sang-je."
The two entities simply laughed, amused, as Vayu placed a draw four of his own, much to Dangun's dismay.
Kali tilted their head, "This is quite amusing, Sang-je. You made the correct decision when you brought this game here from the other plane."
Sang-je nodded, "That I did. There is another game from that plane, too. It is called Monopoly. Though the mortals there told me it ruins friendships."
The other four ignored the entities' conversation.
Instead, Agni hummed, "Where'd Tui and La go?"
Nügua raised a brow, "They snuck out ages ago."