★Japanese Voice Actor: Sota Arai
★English Voice Actor: Roger Craig Smith
★German Voice Actor: Marc Bluhm
★Spanish (LA) Voice Actor: Joel Sánchez
★Spanish (EUR) Voice Actor: Javier Martínez
★French Voice Actor: Vincent Dussawoir
Manumaru's appearance is based off of a Pallas Cat. He is tall with a muscular build, light fawn fur, a white muzzle, brown stripes on his forehead, and white stripes on his cheeks. Manumaru is only seen wearing a white dress shirt with no tie, gray pants, and black shoes.
Manumaru is flirtatious and very social, he was even able to get Fenneko to let loose from her typical demeanor. He feels responsible for Resasuke and tried hard to set him up with Retsuko. Manumaru would try to guide Resasuke via phone calls while on dates with Retsuko, but he could never convince Resasuke to actually care about dating.
★"Has anyone ever said you resemble a Sanrio character?"
★(To Fenneko) "You're such a spitfire! There's something super hot about that, you know what I mean?"