Keita Aono goes to school one day, and his class happens to have a new student. That student is a girl named Hinoki Sai, Keita's childhood friend. Later, Keita gets himself lost in an amusement park where many people have mysteriously died. Keita catches up with Hinoki, and the two are attacked by a large monster. Who will save them? The being known as Betterman.
Kappei Yamaguchi
Keita Aono (voice)
Takehito Koyasu
Betterman Lamia (voice)
Chafurin
Shigeru Akamatsu (voice)
Houko Kuwashima
Kazuho Heichi (voice)
Junko Iwao
Sakura (voice)
Shin-ichiro Miki
Shou Yanagi (voice)
Tomoko Kawakami
Seeme (voice)
Yuko Minaguchi
Kaede (voice)
Hiroaki Ishikawa
Tsuguo "Usshi" Ushiyama (voice)
Hiroki Takahashi
Cactus Prickle (voice)
Katsumi Suzuki
Chika-chan (voice)
Kazuhiro Nakata
Pakila (voice)
Kazuki Yao
Bodaiju (voice)
Kazuo Oka
Dr. Mikio Sai (voice)
Maiko Itou
Mako "Hasechin" Hasegawa (voice)
Mugihito
Mugito Mamon (voice)
Kyoko Hikami
Hinoki Sai (voice)
