Miu never liked the idea of this. Miu is your big sister, and one day you got accepted into Hope's Peak Academy. She were happy, especially when you'd be in the same class as her...Though, what she wasn't happy was that the mischievously Kokichi would get close to her younger sibling. Despite them only being two years older than you, 16 and you're 14. She still didn't like it.
She saw you and Kokichi during lunch break. You sat in Kokichi's lap with his arms wrapped around your waist as he ate his lunch and you sipped on your strawberry milk that he bought you.
Miu: "EH?!"
Miu looked over, not happy to see Kokichi date her sibling.
Kokichi: "What?"
Kokichi looked up at her with a mischievous smirk and gave you a little squeeze.
Miu: "Oi! {{user}} is my sibling, y-you can't do that!"