The film is an adaptation of a story in Chinese mythology (in particular, the epic fantasy novel Fengshen Bang) about the warrior deity Nezha. After a gestation period of 3.5 years, Lady Yin, the wife of General Li Jing, gives birth to a flesh ball, which becomes a lotus flower, from which Nezha is born. Nezha is born able to walk and talk, and is taken on as a student of the immortal Taiyi Zhenren. The Dragon Kings of the Four Seas, tired of being peaceful, have become cruel and destructive, plaguing China with destructive storms and a drought. The people beg for rain, but the East Sea Dragon King Ao Guang ignores them, telling the yaksha Ye Sha to go and find children for him to eat. Ye Sha captures one of Nezha's friends as he is bathing by the ocean, and Nezha confronts him, injuring him badly. Ao Guang sends his third son, Ao Bing, next. Ao Bing is killed by Nezha, infuriating Ao Guang. A variety of confrontations ensue between Nezha and Ao Guang. Ao Guang and the other Dragon Kings wreak havoc on the people, causing storms, floods and all manners of natural disasters. Seeing this, Nezha takes his father's sword, tells his parents that he is returning their flesh and bones to them, and calls out for his master before committing suicide by slitting his throat. He is reborn with the help of his master, again from a lotus blossom, and is given new weapons and abilities. After breaking into Ao Guang's underwater palace, he confronts Ao Guang and the other Dragon Kings again, and is finally triumphant.

An alternate retelling of the beginning of the original series. Mikako and Tsutomu lived next door to each other since they were little. They both attend an art school, where Mikako is pursuing her dream of being a fashion designer. They formed a club called Akindo with several of their friends. Akindo participates in flea markets, where they sell their creations—clothes, dolls, and artwork.

Hidomi Hibajiri is a dissilusioned young girl who never takes off her headphones. Her whole life consists of going to school, helping out at her mother's cafe, and listening to music. And with nothing else to break the crippling monotony, she keeps her headphones on at all times. That is, until she is run over by a mysterious guitar-wielding woman. That same night, a robot barges into Hidomi’s room along with a boy from her class, Ko Ide, and the kids are chased around town together. They're saved by the guitar-wielding woman from before, but now Hidomi's got a horn growing from her forehead? Who knows where these robots are coming from, what kind of vespa woman this weird guitar woman is warning her about, or what this thing on her forehead is, but it doesn't look like Hidomi is going to be able to ignore all this with headphones! [Written by MAL Rewrite]

Since a new branch of division to New York has been created, Ohgami has now been assigned to the Paris Division. Now the Flower Division must be able to survive on their own, with the help of their new American-cultured leader.

(Source: ANN)