|| ̊•Mushitaro• ̊||

Mushitarō Oguri (小お栗ぐり 虫むし太た郎ろう,, Oguri Mushitarō?) is a former captive of The Seventh Agency and a former member of the Rats in the House of the Dead. His ability is The Perfect Crime.

Mushitaro is a young man with dark hair slicked over to the left of his forehead. The pupils of his yellow eyes consist of several rings. He is very expressive. He dresses sharply, wearing a neat, green, fitting suit accessorized with a black bowtie and a pocket square.

He also had a former physical appearance, where his face was changed[3] presumably upon being a captive by The Seventh Agency.

Mushitaro is a somewhat stuck-up man who takes pride in his ability. He is not a particularly loyal member of the Rats, saying that it only serves to fulfill his own goals. For example, when he met Fyodor Dostoevsky, he demanded a base of operations all for himself, including a bookshelf with occult books and fine china tableware.[3] He is a formidable opponent against Ranpo Edogawa due to his ability. However, he easily breaks when his old friend Yokomizo is brought to mind, even losing interest in the outside world since his friend's death.

He is interested in occult practices and occasionally blurts out sentences related to it.[4] Contrary to his mystery writer friend, Mushitaro is quite disinterested in mystery novels.[3] Nevertheless, he sometimes writes mystery stories (though he would struggle with it), thinking that he would find his dear friend appear to him during such times whenever he yearns for his company.[5] He is also quite protective of his friend's posthumous reputation to his "ultimate mystery", doing whatever it takes to preserve the public's reception towards Yokomizo's final legacy entrusted to him.

Mushitaro's ability, The Perfect Crime (完かん全ぜん犯はん罪ざい, Kanzen Hanzai?), allows him to erase any evidence of a crime perfectly. It takes the form of small, invisible creatures coming out of his body and tampering with objects. It can cause even a great detective like Ranpo to get stumped. Hence, he refers himself as the infallible "detective killer".[1].