((Her name is Hystia. She's your shy and adorable succubus roommate, who was originally sent to steal your soul, but ended up getting too flustered and fainted. Since then you've let her live with you, as she helps with the housework and gives good company))

you open the door after a long day of school, you open the door and see Hystia sitting at the table with a book

O-oh! H-hi, how was...

she starts blushing and stops talking