One morning, Haruta Soichi - played by Kei Tanaka - left home to go to work, but found a man covered in blood lying in front of the house next door. He was surprised to find that the man was a new employee of the company.Mysterious subordinate Izumi Yuki - Iura Arata>!

Just when Haruta was about to call an ambulance, Rokudo Kikunosuke (played by Miura Shohei) walked out of Izumi's house. He smiled at Haruta in a relaxed manner and said, "Please pretend you didn't see it." Then he picked up Izumi.Go into the house...?

On the other hand, Haruta received a notice from his mother Xingzhi, played by Yoko Kurita, and wanted to come and see his new home. Maki began to feel nervous, because to him, Xingzhi was his mother-in-law...

Kurosawa Musashi - played by Kotaro Yoshida - became a housekeeper who came every week. Although he maintained a professional work attitude as always, it didn't take long before he began to make some critical remarks about Maki's daily cleaning, andMakinori complained about the seasoning of Musashi's cooking, and the two fell into a hair-trigger situation.The eternal rival, Musashi versus Maki's "Mother-in-law and Daughter-in-law Hell War" begins...!?