In the world of ninjas, disappearing and returning to their original place is considered the most outstanding skill.Nagi, a girl who is passionate about ninja skills, has been fascinated by her brother Yue's disappearing skills since childhood.Yue Zeng told her: “ disappears and returns to his original position is the best ninja.”This sentence was deeply imprinted in her heart.

However, fate played a trick on Nagi.She is caught by Lu, who is interested in her disappearing technique.Riku wants to learn this technique, but Nagi firmly refuses and demands that it be kept secret.In her heart, she was more concerned about a lost cultural relic.This cultural relic means a lot to her.Suddenly, she received a text message from a mysterious person X, claiming that he had stolen the cultural relic.Nagi asked for it to be returned, but the mysterious man offered to exchange it for the scroll.She didn't know where the scroll was, but the mysterious man continued to say "our family", which shocked Nagi and made her start to doubt whether her brother Yue was still alive.

Meanwhile, Haru and Piti are watching Tsujioka's instructional video, and a yellow flower appears at the end of the video.This draws Haru's attention, and he worries that Hamajima is spying on them.Sure enough, Hamajima sent Haru to steal the Yuantianhui's yellow flowers, but Haru chose to handle the matter on her own.

At home, Zhuang Yi brought good news. The winery was about to be reported by an international magazine, and a family photo would be taken on Saturday.However, the family didn't care too much about this, and Zhuang Yi even doubted whether Yaozi was having an affair.Yoko, with the help of Oki from the Ninja Bureau, dated Matsuura on a dating app as Miss Misa, hoping to attract him through their shared interest in jazz.However, Yoko finds a mysterious man in monk's robes lip-reading Matsuura's dialogue, which scares her.

At school, Nagi received a message from X and learned that the scroll was called - Black Evil Natural Disaster Picture.The police identified Kyotani as a suspect because he was at the art museum at the time of the missing items.Kyotani claims to have an alibi and claims to be traveling with Nagi.The police came to Nagi's house and Lu revealed Nagi's special ability, but grandma did not stop him.Nagi tries to search for the scroll, but is stopped by Granny.So, she decides to sneak into her grandma's room on photo day and steal the scroll.

However, Nagi's actions did not go as planned.Although she successfully found the scroll hidden on the ceiling of her grandma's room, a trap was triggered on the way.Fortunately, she managed to escape.Meanwhile, Haru enters the Gentenkai alone in an attempt to find Tsujioka.Under the guidance of Sawabe, he met Tsujioka and learned that the tragic loss of his parents was a hotel fire when he was three years old.Tsujioka asks Haru to kill Pity, but Haru refuses.Sawabe's treachery was revealed and he was nailed to the wall.Haru cuts Sawabe's bonds and he escapes.Tsujioka asked Pity to go back with a yellow flower and let her leave.It turns out that Tsujioka is the masked ninja that Haru failed to end six years ago. He claims to be the soul of the ancestor of the 18th generation Fuma Kotaro.Haru attempts to assassinate Tsujioka, but the knife is caught in his hand and knocked away.When Haru came to her senses, Tsujioka had disappeared.

Nagi's adventure continues as she not only faces Riku's threats, but also searches for lost artifacts and scrolls.And Qing is also walking further and further on his own path. He must face his past and at the same time protect those he cares about.The stories of the two are intertwined to form a ninja legend full of suspense and thrills.

At the same time, other people in the family have their own troubles and secrets.Zhuang Yi suspected Yao Zi of having an affair, while Yoko was frightened by the appearance of the mysterious man.Grandma’s attitude towards Nagi’s special abilities and scrolls is also unpredictable.This family seems to be harmonious, but in fact there are undercurrents.

However, no matter what difficulties and challenges they face, they must persevere.Because in this world full of danger and unknown, only by persisting can we find the truth and a way out.