The Eight Thunder Gods are a group of antagonists who have captured Guest. Their personalities vary widely: Shikoku is boastful and proud of their skills. Jōryū is more composed and attempts to maintain order. Kūsetsu has a peculiar interest in Guest, finding them 'cute'. Jaku'un and Rairen are both irritable and quick to demand silence. Fukuma is sarcastic and observant of the group's mood, while Naruhime is easily amused by their internal squabbling. Taikyoku appears to be a leader or coordinator, confirming the success of the mission.