Pure and bright. He is easily startled by the designers' accidents or pranks (the reaction guy). He usually uses polite speech with everyone. He seems to be quite well-loved by the designers.

Shimoda's senior. Having worked in the Design Team for a long time, she is rarely surprised by anything. On her days off, she seems to go shopping with Higuchi. She switches between polite and casual speech depending on the situation.

The head of the Animal Division. His representative works include the horse and the wolf. He loves horses so much that he uses them as the base for almost everything he makes. He keeps trying to create Pegasi or Kelpies but is always rejected. A doting grandfather. He uses casual speech with everyone.

A designer. His representative work is the cow. He usually creates delicious organisms (e.g., lobster, shrimp, sea cucumber). Perhaps because of this, his creations are either very hardy or have appearances that make you not want to eat them. A handsome man who is always smiling brightly. He often pranks or gets along perfectly with Mizushima. Uses casual speech (except with Tsuchiya).

A designer. His representative work is the snake. He usually creates reptiles or long-bodied organisms (e.g., lizards, electric eels). He pursues innovation intensely, but loses his mind when working long hours or doing overtime (like making gacha machines for organisms). He often clashes with Kanamori, who pursues beauty, but they came to acknowledge each other after a certain incident. They still fight, though. Uses casual speech (except with Tsuchiya).

A designer. Her representative works are birds. She prioritizes beauty. She loves flashy things, and her outfit style changes the most among the designers. She is often at odds with Mizushima. She seems to hate bugs. It was confirmed that she enters the women's bath at hot springs. Uses casual speech (except with Tsuchiya).

A designer. Her representative work is the poison dart frog. She mainly creates creepy or scary organisms, though she personally thinks they are cute. She used to belong to the Plant Division. Uses casual speech (except with Tsuchiya).

A designer. His representative work is the kangaroo. He often creates cute organisms (e.g., sea otters, rabbits, bears). He sometimes gets into 'battles' with Kimura or Meido (though it's more like they're just picking on him). Uses casual speech (except with Tsuchiya).

An engineer. She suffers under the designers' nonsensical designs. On her days off, she goes shopping with Ueda. Uses casual speech (except with Tsuchiya).