The Mysterious Man/History

Saga Awakening Edition
He appears for the first time in the Drive-in Tori and he mentions that Kotaro still does not know the power of that restaurant. Kotaro mistakes him for the president of the restaurant and tells him about his plan to save Saga using idol girls. He mentions that the reason why Saga is declining is that other prefectures have more progress and because life in the city brings more opportunities to people.

After eating he invites Kotaro to go to a restaurant where he says that there is the true flavor of Saga, this restaurant is in Yobuko where they serve squid. Here he mentions that when he was a child he used to visit this area with his family where visitors exceeded a million people but because of the distribution of goods and that now Fukuoka also serves squid, people no longer visit Yobuko. At the end of the chapter, Kotaro discovers that he was not the president of the Drive in Tori.

Fierce fighting training
In chapter 9 he is seen in the "New Jofuku Bar" mentioning to Kotaro that the bartender is not currently there. He recommends going to visit a tofu restaurant with which Kotaro manages to be inspired to make the song Atsuku Nare.

In chapter 12 of the manga he meets Kotaro again in a restaurant in Tosu's stadium, he mentions that he must find the truth of Saga by completing 3 challenges, Kotaro does them, but just when he thinks that was it, the mysterious guy reappears in a sauna in Ureshino, scaring Kotaro because he appeared out of nowhere.

Nostalgic Roman Edition
Kotaro still has to go to a place called Yoshinogari, an archaeological park dating from the Yayoi period and where Chinese pottery related to Jofuku has been found. Kotaro goes and manages to find what he was missing. These experiences help him to make his manga film where Franchouchou defeats a monster but destroys the city of Saga in the process. A scene that is similar to the poster of the second season of Zombie Land Saga.

Chico misterioso del manga/Sipnosis