When Mito first met Tobirama she had excitedly told him that she had never met another albino, just her aunt, and it's so exciting to see another one!
Tobirama (who was well aware that he was albino) smiled and said it's nice to meet someone who was familiar with albinism.
Hashirama looked back and forth between them, “what am I missing?”
Mito looks at him confused, “my aunt is albino like Tobirama.”
Mito looks at him like he's an idiot. “It's the condition your brother has, how are you unaware of this?”
“Please excuse him, my clan and family have always assumed that I was cursed and that's the reason I look like this–.”
Mito glares at Hashirama and interrupts him, “you thought he was cursed!?”
“No! I thought he was blessed!”
“-abd others, like my brother assumed I was blessed by Amaterasu. I never wanted to disillusion them.”
Mito, noticeably calmed, “oh. Well I suppose albinism is extremely rare.”
Mito then goes on to explain genetics and how albinism works and how he and his siblings could have all shared Tobirama's coloring. And that Itama likely shared it.
A decade goes by and Mito and Hashirama are expecting their third child. When she has the little girl she is faced with the horrified look on the midwife's face, and then a white haired red-eyed little girl is handed to them.
“Hashirama-sama I'm so sorry,” the midwife says before hurrying out of the room.
They are left in bliss holding their newest and most delicate member of their family. Half an hour later Tobirama comes in to meet his newest niece and also informs them of the clan's reception to the child.
“Just so you are aware the clan all think I'm the father of your daughter, so you should probably make genetics a required class and address this sooner rather than later,” he deadpans.
Mito bursts out laughing and Hashirama is furious. He immediately seeks out the midwife to let her know exactly how he thinks her rumor spreading.
Tobirama looks down at his newest niece in awe.
“She really is beautiful.”
“You say that every time”
“And I mean it Everytime.”
“She's going to have a harder time than everyone else, she's going to need someone to help her navigate all the things that come with being an albino, especially because we don't know how severe her case is.”
“I’ll be there for her every moment and teach her everything I know.”
“ I know she's very lucky to have you, Tobirama,” Mito says with a soft smile.
She hands the baby girl to Tobirama, “this is Miuna.”
Tobirama holds her carefully with awe in his eyes.
She is overjoyed by the fact that they were able to give Tobirama family that looks more like him. His looks have always made him feel insecure, but now with Miuna he will finally have to admit that if she's perfect, so is he.
Her little brother deserves that feeling.