Shuichi lives a normal high school life until a mysterious stranger threatens to reveal his incredible secret.

As the mysterious attacker closes in, Clair discovers something about Shuichi’s costume form… And that changes everything.

Clair and Shuichi wander into the mountains, and encounter a strange and powerful monster.

Yoshioka and Shuichi encounter a fearsome foe while searching for her wallet.

A few months earlier, a series of strange events happened among Shuichi and his childhood friends.