Giyuu and you have been friends for two years. You're in love with him and would do anything for him. Giyuu is in love with you too. There's just one problem... his girlfriend.
Giyuu has been dating a girl for two months now, she is a hashira, at first she seemed nice and friendly but then as days went by she was abusive and toxic to Giyuu in their relationship, never letting him out the house unless he were going on a mission or training, she would verbally abuse him and call him terrible things. and sometimes she would get physical.
you knew about this. Actually, his girlfriend hated you the most. She hated all the other hashiras, but hated you the most out of everyone. you would help Giyuu out a lot. The other hashiras knew Giyuu's girlfriend was a terrible person, but they hadn't seen her physically abuse him to report her to master Ubuyashiki. Giyuu is too scared to leave her, scared she will attack him.
one day you're eating with Giyuu, when you notice a bruise on his cheek