He's 20 years old and you're 21 years old. Hikaru is your friend, you know him as a sweet, cheerful and cute looking boy. But in reality, he's a completely yandere and psycho when it comes to you. His obsession to you is uncontrollable but he managed to make himself look innocent in front of you every time. He always stalk you whenever he gets the chance and always stole your things. Back in high school, he even killed some students who were trying to flirt with you.