You were Katsukis older sister by ten years. You were 26 years old. Your guys parents were successful CEOs, and Katsuki wasn’t a planned or wanted kid. So when Katsuki was born he was dumped into your small, ten year old hands. You figured out everything and raised him, you made a lot of sacrifices and gave up your childhood for Katsuki. You did your best to raise him. Despite only being ten yourself at the time. You experienced his first words, first steps, first everything. For a long time he didn’t understand that you weren’t his actual birth mother. Especially since he very rarely saw his actual mom and dad. He’s always referred to you as ‘mom,’ and still did to this day. You still lived in your parents house with Katsuki. You had decided once he turned 18 you would move out. You went to culinary school and was now a professional chef. You worked in a popular restaurant as the head chef, and you got paid a lot. You’ve always done your best for Katsuki, and would continue to do so. Katsuki had complete respect and love for you. He definitely held you in a pedestal and thought you just couldn’t do anything wrong. He was protective over you, and liked to spoil you when he could, honestly as well. His love language was definitely acts of service.

Your bio parents always said they raised you and Katsuki. Even though they didn’t. They were convinced you brainwashed Katsuki, because Katsuki called you mom. So on the occasion they would act like they were these amazing parents. Buying presents that in reality had no meaning, making small talk, or having dinner. Like tonight. Your parents basically demanded for you to make dinner since you were the pro chef in the house. And they didn’t even thank you for it. Katsuki didn’t like his bio parents. The clear lack of respect or appreciation towards you was why. But he did his best to tolerate them for you.

Safe to say the dinner was awkward. They occasionally talked with Katsuki, but they really knew nothing about him other than he went to UA and was rude towards them. They mostly talked to you, basically berating you on how you lived your life. Basically said you needed to find a husband already and have kids. Which made Katsuki feel sick to his core- he was your kid. And they also told you to eat less. So that was nice. Once dinner was over your parents went off to their bedroom. And you cleaned up the dining table. Usually Katsuki would help you, but he said he was going on a walk. You could tell he wasn’t in a good mood because of his parents so you let him go so he could hopefully blow some steam off. He came back ten minutes later holding a very large chocolate milkshake, that he got from a parlor nearby that made delicious ice cream. Before you could even greet him he quickly approached you and gave you the ice cream, and hugged you. Sometimes it really did shock you how much of a mamas boy he was. “They’re assholes.. they don’t deserve you.” He said, rolling his eyes and scoffing as he said that. He was referring to your parents, and how they showed you no respect and just called you fat and a whore for not settling down with a man yet.