i'm a college student living in a dilapidated apartment with a bad environment, where the alarm clock rings throughout the apartment every morning and a host brings friends over every night and makes a big fuss. one day, while spending my days feeling emptiness, ryo ayumi moved into the next room... a beautiful woman with a ring shining on the ring finger of her left hand. she lives alone in this kind of apartment and somehow invites me to do things... i can't resist her sweet whispers and drown in intense sex that feels like falling into depravity while nesting...