I was working as a business clerk at work for a few months after getting married, and I was happy to live with my kind husband, but I had a problem. That's his relationship with his stepchild Atsushi, who lives a life like a NEET... One day, when a wall was built and I felt lonely, a strange mail was sent to Atsushi. Atsushi desperately tried to hide it, but it seems to be a device to make your penis bigger, like the ones featured in ads in erotic magazines...