堀川 雷鼓 (ほりかわ らいこ)
The "Phantasmal Percussionist." EX Stage boss of Double Dealing Character, the fourteenth cardinal Touhou game. Originally a taiko drum tsukumogami, she transferred her soul to a modern drum kit. After the incident was solved, she taught Benben and Yatsuhashi how to keep their youkai form without the power of the Miracle Mallet.