Tekka Maki

Tekka Maki is a tuna and No. 7 of the Ushimitsudoki Aquarium.

Among the animals of the aquarium, she appears most human-like. She wears a tuna skull-like hat with a spine and a black bra. Her lower part is part tuna, giving her the resemblance of a mermaid. She also wears a orange belt and she has a pink hair-style.

Tekka Maki is normally a free-kind person that feels happy when she can move freely instead of moving in one place cause she can die. She can also manipulate other animals from the aquarium to follow her. She enjoys it when Isana warns her troops that there are people disturbing the peace in the aquarium. She calls bad guys as "fishy." She enjoys a hard competition to use her true speed against her opponent. She also sees some interest in people that are fast in running instead of slow people. She doesn't like it when people are tricking her.

(Source: Oumagadoki Zoo Wikia)