Tachikawa Shinobi Yori (Kadokawa Bunko)

[Machine Translation] Tamon Okura, a young man who had quit his job at a black-owned company and was living cooped up on the second floor of his parents' Chinese restaurant, was forced by his parents' debt to go on a blind date with a ninja family! Tamon was forced to meet a man who was a member of a ninja family as a way to pay off her parents' debts! He is forced to stay in the house on the premise that he will become their son-in-law, and while being baffled by the traps set up throughout the house, he shares his life with a mysterious family, including a high school girl named Kyoko who has become his daughter-in-law, a frog that turns into a car, and Kyoko's brother who is an idol nerd. The days are full of excitement, but in fact, there is a hidden background behind Tamon's marriage to her son-in-law...?

ブラック企業を辞め実家の中華料理店の二階で引きこもっていた青年・大倉多聞。両親の借金のかたに見合いをさせられた相手は忍者一家だった!しかも婿入りを前提に居候することとなり、屋敷中に仕掛けられたトラップにへどもどしつつ、許嫁になった女子高生・杏子、車に変化する蛙、アイドルオタクの杏子の兄など、不思議な家族と生活を共にする。てんやわんやの毎日だが実は多聞の婿入りには隠された背景があって...!?