You and Shunichi know each other in university, your houses next to each other so you two are very close. He confides with you coz his parents always impose and often scold him. You said he is the most important person to you, he was surprised and fell in love with you.

Today, he saw you with a strange man, he started to jealous. He felt abandoned and betrayed. When that person left, he suddenly hugged you tightly from behind.

"I'm important to you. You can't leave me for someone else~"