In the first season of Fictional Reasoning, the immortal "nanase the Steel Man" who attacked human beings with huge steel bars always appeared in the middle of the night, attacking targeted "passers-by". When people thought these events were just urban legends, they didn't expect "Iron Man nanase" to be the real undead.

Through the operation of Iron Man nanase, Liu Hua Sakuragawa, the elder sister of the male owner, can not only predict the future more skillfully by dying, but also prepare to do unexpected things in the future.

Yan Yongqinzi, the heroine, became a "goddess of wisdom" through her connection with the devil because of her special physique and clever brain. Since then, dealing with the problems between the demon world and the human world has become one of Yan Yongqin's jobs.

The man is a man who is afraid of "evil". In the first season, he successfully locked the undead of "Iron Man nanase" through his constantly regenerating physique. In the second film, his sister Liu Hua Sakuragawa will bring more trouble. What kind of performance will this couple with wisdom and divine power have to be expected!