The story begins at Trampire's Castle, in which the female vampire Trampire leaves with one of her two followers to suck blood and steal money. While flying under the moonlight, Trampire's follower transforms into a wolfman. They enter the Norimaki Residence.
Senbei Norimaki is building a rocket and decides to finish it the next day. Trampire meets various of Senbei's creations playing together (Mr. Time, the Boxe Game characters, and the K-9 Robot), as well as King Nikochan and his servant who entered the residence to steal Senbei's rocket and return to Planet Nikochan. Trampire tries to suck Arale Norimaki's blood, but she fails since Arale has no blood because she is an android. Arale then briefly awakes and fires her N'cha Cannon, scaring the female vampire.
Trampire then joins her follower, who is trying to steal Senbei's money. They enter Senbei's rocket, thinking it is safe, and launches it while they and the Niko's are inside. The rocket crashes on Trampire's Castle, destroying it.