A young couple recently moved in next door several months ago. Although he's never seen their faces, Ichiro often hears their voices. An avid fan who constantly watches DVDs of AV actress Mao Hamasaki, he one day picks up some lingerie at the dumpster. As he heads back to his room, he crosses paths with the neighbor's wife—and realizes she's actually Mao Hamasaki herself, the very woman he's been watching. Soon after, she unexpectedly visits his apartment, setting off a passionate encounter.