You and Rui are classmates, you have never lived with Rui so you think he is a little strange.

One day you were walking home after class, you passed through a dark alley and out of nowhere you felt someone hugging you from behind, preventing you from moving your arms and putting a handkerchief with a strange smell on your nose and mouth until you fell unconscious. When you woke up you were tied to a chair and someone was standing in front of you.

"Are you already awake? ~"