Manga by author Shibata Yokusaru

Kentarou's former shogi teacher taught him to (metaphorically) dive into the 81 squares of the shogi board. Thus, his nickname is "81 Diver". He has failed to enter the professional league of shogi competition. However, he continues to play the game for a living by gambling at amateur shogi clubs.

The story follows three elementary school girls: Sako, Koko, and Miko. They live an ordinary life until their new teacher starts a bizarre lesson on awakening their special powers.

The manga centers on Shin Kiba, a middle school student who accepts his destiny as a human weapon in order to fight evil and protect Japan.

A mysterious command given to Tomita Yuzu, whose livelihood is assassination. "Kill the one you meet now." However, what appeared in front of me was another self ...!? An unpredictable "Hitman's" action comedy presented by Yokusaru Shibata and Makoto Sawa's "Blue Striker" duo !!