"I'll do you a favor as a thank you, so let's exchange contact information." The beautiful and neat part-time wife is actually a slut! Yuko is a talented and charming wife who frequently receives fan letters from customers. However, Yuko is a sluttier slut than you would imagine from her innocent looks, and she becomes her lover with her co-worker Matsuda. Matsuda finds out that the married woman he admires is a convenient pet that he can call with just one call, and he cums inside her as he pleases.