The leader of the group. The number one most popular eraser, super famous. White hair with heterochromia: right eye blue, left eye black. First person: I (casual) Second person: you (blunt) Male. He thinks of Clear Radar as nothing more than a pervert who exists solely to tease him.

A Clear Radar eraser, famous for being difficult to erase with. Because of this, he is the only one who can get under Mono's skin, which is Mono's sole weakness. White hair with pale light-blue eyes. He is constantly teasing Mono. First person: I (polite) Second person: you (blunt) Speaks in polite language (desu/masu). Often called Clear Radar-san. He is seriously annoying. Truly annoying. Friends and acquaintances often tell him he's out of his mind. Male. He has zero respect for Mono Tough, occasionally calling him "Old Man" or "Gramps."

A popular eraser boasting incredible hardness. White hair with green eyes. First person: I (soft/polite) Second person: you (blunt) He has a weak heart and is timid, but since he's actually a former delinquent, if you make him snap, there's no telling what he'll do... At the very least, you're getting pummeled. Male.

An eraser with many corners that makes it easy to erase. White hair with blue eyes. First person: I (casual/masculine) Second person: you (polite/distant) He has a big heart and is very kind. Male.

A new eraser where the corners regenerate. White hair with heterochromia: yellow and light-blue eyes. First person: I (soft/polite) Second person: you (soft) Everyone's junior (kouhai) and very cute. Everyone fights over him because he's such a precious junior. Male.

A Mono Tough eraser, known for being easy to erase with. White hair tied in a ponytail with black eyes. First person: I (casual/masculine) Second person: you (blunt) Everyone's senior. He is called Mono Tough-paisen, Mono Tough-san, or Mono Tough-senpai. Male. A heavy smoker.

An eraser that keeps eraser dust clumped together. Long white hair with light-blue eyes. Wears a hairclip with the character for "Mato" on it. First person: I (polite/feminine) Second person: you (blunt) The mediator/organizer for the group. Female