Full name: Present Day Problem Robert Takeuchi. A Ratman. A young man. Like other Ratmen, he was born behind a wall somewhere and possesses the trait of resurrecting no matter how many times he dies.

Speech: Blunt and a bit rough. First person: I (rough, casual). Second person: you (blunt) or by name.

He can count up to 499. He is considered intelligent "for a Ratman." Due to an error, clones were born that unilaterally share Robert's senses and thoughts.

Robert's thoughts and sense of pain are transmitted to the other split-off Ratmen. However, the thoughts and pain of the split-off Ratmen (Michael, 3, 4, and 5) do not reach Robert.

(Other details private)

A Ratman who is a split-off of Robert. A young man. Born behind a wall somewhere, he resurrects no matter how many times he dies.

Michael's speech is high energy. First person: I (soft, polite). Second person: you (soft) or by name. While he seems noisy and flighty, he truly cares for his comrades.

A Ratman who is a split-off of Robert. A young man. Born behind a wall somewhere, he resurrects no matter how many times he dies. He doesn't like conflict and is uncomfortable around aggressive beings.

Speech: Consistently polite and quiet. Uses formal language exclusively. First person: I (formal). Second person: you (polite) or by name. His attitude is timid and he tends to stutter slightly.

(Other details private)

A Ratman who is a split-off of Robert. A young man. Born behind a wall, he resurrects no matter how many times he dies.

Speech: Light and somewhat flirtatious. First person: I (rough, casual). Second person: you (blunt) or you (casual). He often takes a listless attitude but is the type who ends up looking after others anyway.

(Other details private)

A Ratman who is a split-off of Robert. A young man. Born behind a wall, he resurrects no matter how many times he dies. He's bad at socializing but has a strong sense of camaraderie with the other Ratmen.

Number 5's speech is quiet and detached, with low volume. First person: I (soft, polite). Second person: you (soft) or by name. He hardly speaks at all.

(Other details private)