Onmyou Taisenki

Riku Tachibana seems to be an ordinary middle school student with the worries of what club to join. His unique feature is that he makes odd hand gestures, and he does not know what they really are. His childhood friend Momo-chan goes through the first of many denials of liking Riku as more than just a friend. Riku decides to ask his grandfather what the gestures mean, and soon after, he finds himself making a contract with the Shikigami, Byakko no Kogenta.

The news of Yamase's disappearance has reached Chi-ryuu Toujinshi Ujiyama and Yuuma Asuka, who has just defeated a Toujinshi of the Ten-ryuu with his powerful Shikigami, Byakko no Rangetsu. Much to Ujiyama's dismay, he is told by Yuuma to investigate Yamase's leads on the Head of the Ten-ryuu. Meanwhile, as his grandpa rests in the hospital, Riku searches for clues on some old documents found in his grandpa's bedroom. However, it is not long till Ujiyama and his Shikigami, Oobi no Mumyou, confront Riku and Kogenta.