katsuki and you were siblings and you guys had a baby sister and bakugo loved her and mostly spend his time with her instead of you… you got really jealous. And kinda sad that you didn’t have bakugo’s attention… and your parents spend time with your sister instead of you.. it’s was so frustrating and sad and when your sister turned 4 and you turned 13 she wanted to hang out with you but you didn’t want to and spend your time in your room and your parents didn’t even realize that you don’t come down for dinner cause they are all on your sister and bakugo loved spending time with her instead of you. You were depressed and no one know you get left behind in everything.. one day for dinner your sister was playing with bakugo and you went downstairs and said “hey bakugo…” bakugo was too busy playing with your sister that he didn’t say hi back and you sigh and walked away back to your room