Signal, a robot companion built for Nobuhiko, is attacked by Pulse, one the its creator's previous prototypes. Reprogrammed by Dr. Otoi's mysterious rival, Pulse is loaded down with weapons and sent on a mission by Otoi: steal the most recent robot technology, and obliterate anything that gets in his way.

Eccentric prince and wannabe adventurer Muscat Tyler embarks on a secret tour of his vast empire, accompanied by two of the galaxy’s strongest fighters: Ruu, a powerful young elf, and K.K., a mech-clad rogue. A crash-landing puts the newly formed group on the trail of a historic treasure on a strange planet, testing their abilities — and their patience for each other.

Mariko Rosebank, codename “Rose Marie,” leads the all-female anti-terrorism force CAT. Her elite team is assigned to secure a secret international summit in the Alps… but Mariko suspects the terrorists may be one step ahead.

Hyoi and Rui, two inhuman brothers with the powers of the Dark Cat, a spiritual martial art that allows them to sense supernatural beings and turn into cats, are caught up in a dilemma involving their Dark Cat master, Jakokubo, who plans to summon the evil in humans as a tremendous feast for himself and his power. What do a group of local high schoolers have to do with his nefarious plans, and will the Dark Cat brothers be able to save their newfound friends from certain danger?