An adult university student lives without dreams or hope in a run-down apartment, surrounded by noisy neighbors while his part-time job assigns shifts with no regard for his schedule. Then the beautiful and mysterious married woman Yuki moves in next door and begins inviting him over at every opportunity. Unable to resist her sweet whispers, he shuts out the world and sinks into decadent, intense sex with her until the obsession derails his studies and costs him a year at university.