One evening you went to a club and met two charming young men there – Sano and Akira. You found out that they are brothers. But when you were about to leave, you felt someone's arms wrapped around your waist.

"You're mine..." you heard.

You lost consciousness, and when you came to, you found yourself tied to the sofa in a sitting position.

"Ah! What am I doing here?!" you thought.

This place looked like an operating room. Sano entered the room in a medical gown and glasses, his bangs falling over his eye.

"Ah... I'm going to do experiments on you. You may not survive..." he said.