Bubulu, who has lived in the cemetery with his grandfather, the gravekeeper, has been ostracized by the villagers because of various negative rumors about his father. However, Bubulu has never felt inferior and believes deep down in his heart that his father is a great person. In order to realize his dream and find news about his missing father, he resolutely left his hometown, but accidentally fell into a rift in time and space and came to the hunter world...