Even Flowers Bloom In The Winter

Being the second lieutenant of Squad 6 should feel like a victory after years of training yourself, but now it feels like nothing but a chore. Byakuya Kuchiki is uncertain about your ability to maintain power, which creates an ever-growing rift between you, prompting the fifth-division captain to catch your fall. As time passes, Sosuke Aizen becomes your only faithful companion, leaving a bitter air around your past. Can you disregard what once was, or will love be the key to your undoing?

AO3: https://archiveofourown.org/works/43423311/chapters/110946159