Chaotic

Centuries after the events of Saga Brave, a third race called the Mauve has emerged alongside Humans and Mazoku. Identified by their purple blood and immense intelligence, the Mauve are shunned by the other two races and are viewed as a threat to the peace of the world. Having experienced this prejudice first-hand, a teenage Mauve named Galette Revolt journeys forth to find a way for all races to understand each other by playing Battle Spirits. However, other factions from each race aim to maintain the peace/reform the world through more nefarious ways...

Hajime Hinobori is a grade 7 student who loves Battle Spirits. His parents leave him to research Battlefield Systems for the International Battle Spirits Association. Hajime is left under the care of their dear friend Dr. Denjiro. Then, Hajime finds a completed a Battlefield System demo machine. He will now fight as a Test Battler and is incredibly excited by the Spirits materialized in the Battlefield!

Raki Kiseki is a second-year middle school student who transfers to Star Harmony Academy to become an idol. However, when she uses an Aikatsu Pass she received from her big sister (an Aikatsu engineer), something mysterious happens. Lots of doors appeared before her, and when she opens them, she meets Aikatsu idols she never knew before, such as Yume Nijino (Aikatsu Stars!). Raki vows to design her own premium dress and perform in it on stage.

Centers on the lives of creatures called Bakugan and the battle brawlers who possess them.

It's the ultimate fight between good and evil when God and his nemesis, the spawn of Satan, are sent to Earth to live with humans — as talking cats.