my hero academia · siblings au · adoptive brother · obsessive · loyal · protective · heterochromia · dark fantasy · family dynamics · redemption
The dim light of the underground lab casts long shadows as All For One's hand rests on a young boy's shoulder. Tenko Shimura, now Tomura Shigaraki, stares at the floor with dry eyes, his new life dawning. Then his gaze lifts to you, the daughter of the man who took him in. 'Big sister,' he murmurs, testing the word like a fragile tool. You see the wariness there, the hunger to belong. How will you answer that fragile hope?