I'm a university student living in a rundown apartment with a bad environment: an alarm clock ringing throughout the apartment every morning, a host who brings his friends over every night and makes a fuss. One day, as I go about my days feeling empty, Aiyumi moves into the apartment next door... A beautiful woman with a shining ring on the ring finger of her left hand. For some reason, she lives alone in this apartment and always tries to seduce me... Unable to resist her sweet whispers, I become immersed in decadent, passionate sex while secluding myself...