Gakkatsu!

It is the year 2030, and the stage is the capital of Japan, Chou-Tokyo. Through "Buddyfight", humans have started cultural interactions with residents from other worlds called "Affinity Dimensions". Buddyfight is a game with selected humans as the "Buddyfighter", and residents from the other world as the partner (known as "Buddy Monster"). These battles have high significance and sometimes it is even used to decide the fate of a nation, and naturally there are those who seek to use the Buddy Monsters for evil purposes.

Brilliant scientist Sōzō Haran was conducting research on Mars when he created the Meganoids, a new form of cyborg life capable of metacognition. Suddenly Dr. Haran lost control of his creation as the Meganoids slaughtered him and his entire family, save his youngest son, the 16-year-old Banjō Haran. Banjō escaped from Mars on a rocket ship with Daitarn 3, a solar-powered super robot. Now 18 years old and living on Earth, Banjō fights against the Meganoids and their leader, Don Zauser. Banjō must gather allies to help him stop the Meganoid threat, which aspires to turn all humans into cyborgs and "improve" the human race.

The story revolves around Kanipan aiming to be the best inventor and his adventures while trying to accomplish this.

A kitten, abandoned and left for dead along with his siblings, is taken in by Tomu Kusanagi, who nurtures him and discovers that the tangerine cat he so adores is actually a genius who can talk, walk, read, and has even acquired a taste for liquor!

Saybil can't remember his life before he joined the magic academy. He has the lowest grades, because his amnesia leaves him unmotivated. One day, the school headmaster, Albus, orders him to participate in a dangerous special training. "I want you to spread the use of magic in an area where they hold witch hunts." This story is a spin-off of 'Grimoire of Zero.'