A spin-off of Kobayashi-san Chi no Maid Dragon focusing on the daily life of Iruru and Taketo.
Bookstore manager Tenma hasn\'t shown up for work or called in today. His employee, Asuka, worried about him, goes to his house and discovers... he\'s been petrified by his medusa wife! But surely they can return him to normal? Tenma left a letter saying that if anything happens to him, Asuka should take care of his wife. But Asuka is a guy who can only get excited by other mens\' wives. Also, and most importantly for the plot - hot medusa wife.
Naibara Hirokazu moves from Miyagi to Saitama to start university in Tokyo. Not long after settling in, he starts receiving eerie phone calls from an unknown number. A girl’s voice whispers, “It’s Mary-san. I’m at the garbage dump now… I’m the doll you threw away…” Brushing it off as a prank, he hangs up—but the calls don’t stop. Worse, the caller seems to be getting closer. The next day, he answers again. “It’s Mary-san. I’m in front of your room now…” Could it be that Mary-san, the infamous urban legend, has been isekai’d—and now she’s asking for help over the phone?!
A hero returns from vanquishing the demon lord, but the demon lord, with powers sealed, follows him back to Japan in an attempt to settle the score!
