Gill

Gill is a female fishman who, like many other people, was drawn into the world of Arbatel by the magic of the Grimoire and is currently a member of the swim club and a student at the Grimoire High School. She makes their debut in Chapter 77.

Appearance
Gill is a teenage girl with a humanoid appearance. However, her arms and legs are covered in scales and she has webbing between her fingers. Gill has two pairs of gills, the first pair being on the sides of her torso while the second pair of gills are on the cheeks of her face. As a Fishman, Gill has fins hanging down on her head and a short fishtail at the back of her head.

Due to her membership in the swimming club, Gill wore a dark swimsuit during her stay at the Grimoire, which had exposed spots at the hips for her gills. Presumably, Gill also wore the enchanted school uniform consisting of a seifuku with a plaid skirt outside of swimming lessons, but this was never shown.

Personality
Gill is friendly but also somewhat formal, referring to her swimming instructor/girlfriend as "senpai". She also seems shy and has some self-doubt, as she doesn't think she could surpass her girlfriend's swimming skills. Still, Gill dreams of one day becoming the best swimmer in the world using the techniques her senpai taught her. She wants to achieve this goal both for herself and for her girlfriend.

Physical Traits

 * Fishman Physiology:
 * Amphibious: As Fishman, Gill has gills on both her face and the sides of her torso, which allow her to breathe water. She also has a humanoid respiratory system that allows vocalization and mouth breathing. As long as her gills remain moist, she can breathe on land.
 * Swimming: As a Fishman, Gill is an excellent swimmer by nature. Since she has gills, swimming actually plays a role in her natural breathing, which allows her to breathe underwater indefinitely without having to surface. Gill can swim a long pool lane in a time of 1:09 minutes, although she still has trouble turning.

Zoological Classification
Fishfolk are a pseudohuman race resembling, in affect, humanoid fishes with arms and legs, and with webbing between their fingers. Fishfolk are capable of breathing air and, ironically enough, are more capable on land than the far more humanoid Mermaids thanks to their functional legs.

Trivia

 * Although the description in Chapter 79 states that Gill is a Fishman, she looks very different from Sebasstian and Flounnder. This could be because female Fishman may be more humanoid than males of their species, just like by Minotaurs and Kobolds. Alternatively, it is also possible that Gill belongs to a different Fishfolk subspecies than Sebasstian and Flounnder.
 * Gill is the second monstergirl in the series after Draco to be revealed as a lesbian with the following one being Aya.