Kaiyuu Hiyama (檜山界雄 Hiyama Kaiyuu?) is a first year high school student and plays the timpani . He dropped out of school for at least a year before returning.


Kaiyuu is a lean, slightly tall teenage boy with straight grayish-brown hair tied in a pony tail and lazy-looking brown eyes, he has a strand sticking out in the back. He is usually seen slumped over a bit and holding red timpani mallets. His signature outfit is his green sweater over his school uniform.


Kaiyuu is laid-back all of the time, but he is not lazy. He tends to bring up good points in cases, as he is described as intellectual by Haruta during a case.




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Shimizu South High School
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