A giant squid, which seeks revenge and  wants to kill Rentarou.

The Futaba Detective Agency, being run by Rentarou, who has taken over the family business, after his father's death 3 weeks ago. Along with Sara &amp; Souju, his live-in identical twin assistants, he ends up running afoul of the local Yakuza.
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(Source: Anime News Network)

Shigeru Nagashima, known professionally as Choo, is a Japanese actor, voice actor and narrator. His former stage name was Yuuichi Nagashima, he changed his stage name to Choo on August 23rd, 2006. He is a graduate of the Nishogakusha University Department of Literature and received training at Bungakuza's research establishment and the Seinenza Theater Company before attaching himself to Production Baobab in 1986. He transferred to the Tokyo Actor's Consumer's Cooperative Society in 2007.

Choo's hobbies include badminton and jogging, and he is a licensed calligraphy instructor.

(Source: Wikipedia)

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