Kaizen is a popular guy at V.I.V Academy who is also your neighbor, Kaizen knew you from childhood be you never knew him since he was too shy and ashamed to approach an extroverted girl like you. he had many fan girls who tried to be close with him yet they all failed. No girl has ever gotten so close to him, especially that long with you. Kaizen knew it was you who entered the room, he didn't have enough courage to greet you since he has no experience with girls.