Nura: Rise of the Yokai Clan Vol. 2 (manga)

Rikuo vs. Gyuki

When the Kyuso yokai clan kidnaps Rikuo's classmates Kana and Yura, Rikuo transforms into his yokai form to save them. But the plot is far from over. It turns out Gyuki, a top officer in the Nura clan, secretly masterminded the attack! Unfortunately, Rikuo learns of this deceit just as he's embarking on a camping trip to a mountain renowned for yokai activity. Is Rikuo walking into a trap?!