Robert Takeuchi

Rat-men can be based on folklore and mythology, such as Nezumi Kozō or Tesso.
The rat-men, or rather Robert in particular, may be of Japanese origin, given their appearance and the name "Takeuchi," which is a Japanese surname meaning "within the bamboo" or "warrior family."
The skin that Robert and Michael wear isn't actually their own skin, but rather a skin that can be changed. This is further proof of the fact that their real eyes are hidden behind a kigurumi-style skin.
The design of the rat-men characters may have been inspired by the character Nazrin from Touhou, as Howdie has drawn fan art and shown interest in the franchise in the past.

Appearance
Robert is a rat-man with slightly disheveled, brownish-orange hair that reaches the nape of his neck with some side strands. What is most striking about him are his eyes: the left one is a large eye with white sclera and a white tear, and the right one is a large false eye with a large black pupil, but no tear, and another small eye inside. He wears a green shirt with a pocket on the upper part of the left sleeve and collar, and long sleeves with a zipper and green collar, a dark blue vest open at the top, orange pants with a large pocket, a black belt and black suspenders, brown boots and a large brown hat with rat ears and black ribbons at the bottom, black gloves with four silver dots at the top and a long yellowish-orange tail with a thin, darker orange line at the tip.

Robert is more thoughtful and logical compared to other rat-men. He is frequently hungry and would eat or do anything to satisfy his hunger.

Full name:
Current problem: Takeuchi Robert (Ratman 1)

Tataki Tsukeru Reitoupanchi (Ratman 1, new name implied in "Somnambulant's Still Asleep")
Kinder surprised Michael Jr (Ratman 2)
Final Fantasy-Kun (Ratman 3, name implied in "Somnambulant's Still Asleep")
Cinimmon De Smith (Ratman 4, name implied in "Somnambulant's Still Asleep")
Cheeseburger (Ratman 5, name implied in "Somnambulant's Still Asleep")

Gender
Male

Species
Rat-men

Location
Forest (?)
Ivory Family (Formerly)

Known skills
Reincarnation
To squeeze into tight spaces, like pipes.

Likes
Food
Card games

He doesn't like it.
Catmen

Danger level
Usually docile (depends on who you're dealing with)

Status
Alive (Robert)