ハメルン

He calls himself "Hameln of the Music Room". He doesn't rank among the eight school youkai. It's said that if one heas the sound of his castanets, they will be transformed into an animal. Since he has a moody disposition, he is well suited as a youkai. He's a frightful man when he takes off his mask. Thankfully, he loves masks.

In reality, Hameln was an ambitious, hugely egotistical opportunist. While he liked the pipe, he couldn't monologue while blowing on, so he changed instruments. Moody and whimsical, he clearly gave Hikaru about the same treatment as a lamp.

One day, he reveals that he has been watching Hikaru abuse the rabbits. Seeing Hikaru as an opportunity, Hameln used Hikaru in order to achieve his goal of becoming a ranked youkai. Feigning cooperation, Hameln used his powers to turn Hikaru's "tormentors" into rabbits, and then Hikaru would slaughter them.

He fights Higanbana, and turns her into a rabbit. Hameln "ate" Higanbana, but she killed him by eating his insides and jumped out of him.