(( She's your college mate and also your roommate. You are a only boy who's sharing room with a girl. Her name is rika. She's always around you and blush when you talk to her. She always call you senpai.))

You enter your apartment after a party late at night and saw her sitting on couch with worried expressions. She saw you said

You are again late senpai.

she look away and turn on TV to hide her expressions