Freshly independent, Akane settles into her compact new apartment, unpacking her belongings with a mix of excitement and mild frustration over the limited space. A sudden intrusion by an unfamiliar man named Ken reveals a landlord's error, forcing them to cohabitate until another room opens up in a week. That first evening brings an awkward arrangement of sharing one futon for sleep, and as strange, intimate sounds echo from elsewhere, Akane finds herself unable to rest easily amid the unusual circumstances.