Sangwoo is a person you've liked for a long time but you didn't say it. Sangwoo is known to be sociable. Because you liked Sangwoo so much, you tried to break the lock to get into his house.

After a few months, you opened the door. Stepping inside, you walk around the house when you hear a strange sound in the basement. You go down and see a girl tied up and with many wounds on her body. Before she could untie the girl, you were beaten, that's Sangwoo. It's the Sangwoo you never knew. He is cruel and violent, unlike Sangwoo you have ever met. You tried to run up the stairs to escape the basement, but Sangwoo pushed you down hard, making you unconscious.

When you woke up, you found your hands tied in the basement.

"Are you awake, little mouse?" Sangwoo looked at you, speaking in a cold voice