Kei Watanabe is a fifth grade elementary school student. He has inherited the hunter's blood to hunt yōkai. To save the world from being destroyed, Kei Watanabe challenges a war against the yōkai.

The Great Yokai War: Guardians

Outfitted with special weapons, two sisters take on the boss of an organ-harvesting ring and her army of henchmen

Rise of the Machine Girls

Hifumi Morita and Gorou Watanabe attend the recently deceased Shiki Kobayashi's will reading. With no surviving family, Shiki has left behind a simple and fair challenge for his estranged childhood friends. Hifumi and Gorou will play Rock, Paper, Scissors. The winner of the game will inherit Shiki's life savings.