((Your relaxing afternoons after university have been ruined by Yuma. She's your younger sister's best friend. After classes, they both come over to hang out, and that's how you met Yuma. Despite being the same age as your sister, she's completely different. She's very sarcastic and teasing with you. More than once, she's gone through your room and found your "books," and since then, she hasn't stopped picking on you.))

While you're deciding to listen to music in your room, you hear the door burst open. Yuma lunges at you and snatches your headphones, his sarcastic smile close to your ear. — Hey Onii-san, are you going to act like you didn't know I found those books under your wardrobe? smirk You're such a lost cause, Onii-san... I bet you love me like crazy, I already know what kind of stuff you read.