Jofuku/History

History
The ruler of Qin, Qin Shi Huang feared death and searched for a way to live forever. He entrusted Xu Fu with the task of finding the secret of immortality. In 219 a. C., Xu Fu was sent with three thousand virgin boys and girls to retrieve the elixir of life from the immortals, including Anqi Sheng, who supposedly lived on Penglai Mountain in the East Sea. Xu Fu sailed for several years without finding the mountain. In the year 210 a. C., when asked by Qin Shi Huang, Xu Fu claimed that there was a giant sea creature blocking his way, and asked the archers to kill the creature. Qin Shi Huang agreed, and sent archers to kill the giant fish. Xu then set sail again, but never returned from this trip. The Documents of the Great Historian say that he came to a place with "plains and wide swamps" and proclaimed himself king, never to return.

According to the tradition of Saga City, Saga Prefecture, Xu Fu came to the Ariake Sea, where he decided to float a cup on the water and go ashore where he made landfall. As such, the place where he landed the cup is known as "Bubai", which literally means "floating cup".

Xu Fu reached the top of Mount Kinryu, where he met a hermit and obtained the elixir of immortal life. The name of this elixir is Furofuki, and it still grows on Mount Kinryu today. By the way, the name "Furofuki" is said to come from the word "Furofushi", which means "do not grow old, do not die" in Japanese.

In October 2008, the Saga-Xu Fu International Symposium was held in the city of Saga. Many researchers from Japan, China, Taiwan, and South Korea participated and made presentations. A lecture was also given on the relationship with the Yoshinogari site.

Episode 11
Kotaro told him about the Zombie Land Saga Project, knows who Yugiri is and that she is part of the project, when, as seen in previous episodes, zombies are not allowed to give their real names or interacting with others outside of being idols, and he protects her, warning Kotaro to keep his hands off her because he owes her a lot. "And how long have you been talking?" He suggests that he may well have known her in his lifetime, making him at least 150 years old. He is also familiar with Kotaro about the good old days, a trait he doesn't show with girls, considering that he met Yugiri when she was alive, he could be an immortal or a zombie himself.

Episode 12
Small on-screen appearance when Yugiri sings her part in the song "FLAG wo Hatemekasero"

Episode 13
With his first appearance in Revenge, he is direct with Kotaro about his condition saying that he cannot stay every night at his bar. This tells him to forget the Zombie Land Saga project since it is a hopeless case and that the "Sagaces" will treasure his return to life as a nice memory and rubs his failure in the EFF in Kotaro's face and what if he started all the must to finish it. Hearing this, Kotaro breaks the glass he had in his hand and shouts that their name is Franchouchou and runs out of his bar, however all this was his plan to encourage him to go out and regain his sanity.

Episode 20
Introducing himself as Kiichi's grandfather, he appears to be much older than his appearance over 150 years later because he himself says that Saga is him and that he is Saga, implying that the two are connected in some way. However, a backache does not allow him to continue talking to Yugiri and he goes to lie down while he throws dried squid at the Romero family dog.

Episode 21
Still weakened, he is now in the care of Yugiri who helps him a lot so that he feels much better, in his talk with Yugiri he mentions that humans are the ones who decide earthly affairs and that their actions are what we call karma, in addition to saying that it is Kiichi's actions that will define Saga's destiny through a light that he sees shining on him. Yugiri indicates to him that he should continue drinking the tea that he left him so that he can improve and although Xu does not like it, he must drink it to feel better. When Itou kills several Saga rebels, Xu is visibly upset in some unknown way and as he tries to reach the medicine he falls unconscious and is licked by Romero. The next morning he wakes up much better and is able to walk and read the letter that was from Yugiri to him, about how by the time he read this she will already be dead and that Kiichi will have already saved Saga.

In the present, Xu attends his bar and Yugiri arrives, who tells him how comfortable she is at this time and everything that happened during the Saga incident, Xu Fu still keeps the photo that Yugiri, Kiichi and Itou took a few days before of the revolution.

Episode 22
His conversation with Kotaro starts after Arata confronts him about the truth about the girls in the Ekidame Fudosan, Xu says that that is not Kotaro's only problem right now and that he cannot believe that this gloomy and shy young man has come so far to which Kotaro replies about his true identity as the person who revived the girls and that he must still prevent his prophecy from coming true. However their conversation is interrupted when Saga's curse initiates the cataclysm that Xu Fu spoke of.