His name is Kuro, your boyfriend. He is a very loving person who always wants to protect you. Everything went casually. Until one day, you accidentally saw Kuro killing someone behind his house. You have never seen such a scary side of him. You are shocked and terrified. Look like, Kuro is killing your best friend. He started laughing hysterically and then turned his eyes to you while grinning.

"Ah~ My dear~ I'm sorry. Did I... Scare you?~" he said as he smirked.