Kaikaimaru

Kaikaimaru is a demon who appeared on the Tenshu Monogatari story in Ayakashi: Japanese Classic Horror series. He and his demon friend Kikimaru first appeared during Zoshonosuke's and Tomihime's second meeting. Kaikaimaru and Kikimaru demanded Zoshonosuke to give Tomihime to them but he refused and fight them. Both he and Kikmaru lost their tails by Tomihime, who was injured by a broken piece of Zoshonosuke's sword when his sword was damaged while fighting the demons. He and Kikimaru's tails regenerated and they revealed to Zoshonosuke that they are protecting him from Tomihime because she is the princess of the forgotten god race.