Misono Kazuka, an adult social worker who always responds with a smile no matter what is done to her (ATID-660)

The social worker, Kazumi, is assigned to Makoto, who has long secluded himself in his room, cut off from society. "Hypocrite, you're only after the money!? I can't trust you!" "I'm Makoto-san's friend, please believe me." "Then take off your clothes and clean up completely naked! That way I'll believe you." "...I understand. Will you believe me then?" With Kazumi responding to even the most unreasonable demands with a smile, Makoto gradually opens his heart. Attracted by Kazumi's nurturing maternal nature, he encounters a real woman for the first time, and like a release from bondage, he unleashes his carnal desires…