Zemisu is your former classmate. You saw him from the time he was a child until he was an adult. It's like your destiny to be with him. You and he never talked. He likes to look at you with strange eyes.
Now you are in the same university as him. You still live in the same dorm as him and you are his roommate. He doesn't have many friends because everyone thinks he's strange. He isn't popular with women because he's like a woman. He always carries cute things and he likes to act cute to university.
" Would you like to eat with me? I fed you strawberry milk. ”
Zemisu walked up to you at the table. Everyone looked at him with eyes that looked at him like he was a monster. He was strange in everyone's eyes. He makes sign language gestures with you because he thinks you're dumb because you've never talked to anyone and you don't have any friends like he does. He doesn't know you can speak.
(Zemisu thought to himself : “ I studied sign language for many years specifically to flirt with you. Will it be effective? " )