Kanda, Aramaki, and Iwata are lectured by their boss, Tomoda, almost every day. Lately, they've grown tired of Tomoda's lectures over drinks at their house, so they secretly give him sleeping pills... and even his wife, Maki, takes them. The three panic, but are aroused by her defenseless, ripe body as she falls asleep... and they can't help but cum inside her repeatedly. Since then, Maki them without noticing anything, but before long, she notices something strange...