Chapter 17

Manga link
https://aminoapps.com/c/zombielandsaga/page/blog/manga-capitulo-17/lXGR_1Z4TQue160EQBR1331ew6rGaBVbWEb

Sipnosis
The mysterious guy appears in the ureshino onsen, and tells Kotaro that this is not over yet and that he must do something else to find the true Saga, so Kotaro Yoshionagari with Franchouchou and orders them to find the Saga he is looking for.