Based on the childrens’ book Little Polar Bear by Dutch author Hans de Beer.

After the death of his elder brother, Ginjiro Yamazaki appoints himself his parents’ protector. After transferring to a new school, he gets into a lot of fights. (Source: The Anime Encyclopedia)

A psychic ninja fantasy suggesting that the assassins did not die out during the Sengoku era but burrowed under Japan, where they fought a new war against the alien occupants of a crashed spaceship that has lain undisturbed for several millennia. (Source: The Anime Encyclopedia)

Legendary boxer Keijiro Akagi’s second son, Eiji, is a high school dropout and the world’s worst rock guitarist. Though his father and elder brother are both boxers, he hates the sport but suddenly takes an interest in it when he meets the local champion’s little sister. (Source: Anime News Network)