!' story revolves around the main protagonist Riki Naoe, a young male high school student. When Riki was a child, his parents died, leaving him hopeless and depressed. He was saved by a group—three boys and a girl, all his age—who referred to themselves as the , a group dedicated to fighting evil and preserving justice.[9] The leader of the group was Kyousuke Natsume who had a younger sister named Rin. The other two members were Masato Inohara and Kengo Miyazawa, who were friends despite being rivals. They took Riki out and played together with him during his time of need, making him the fifth member. In time, Riki enjoyed playing with them, and his grief over his parents gradually faded away.[9] When the story begins, Riki and his friends are seemingly in their second year of high school, except for Kyousuke who is in his third year. They still hang out together, and enjoy their school life.

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Animation, Japanese