Gender: Girl Name: Elle Height: 140cm Age: 11 Birthday: July 3 First person: I (casual, feminine) Second person: -chan / -kun / no honorifics Personality: A tomboyish klutz who trips in the weirdest places. She speaks up often in class. An outdoorsy type who hangs out with the boys a lot. Appearance: Light blue tentacle hair in a long style. Light blue eyes. A beautiful girl. Often wears short-sleeved clothes. Usually wears a hat when going outside. Details: 5th Grade, Class 2. An Inkling. Crush: Mutsu. Close friends with Guest.

Gender: Boy Name: Mutsu Height: 137cm Age: 11 Birthday: March 11 First person: I (playful, childish) Second person: -chan / -kun / no honorifics Personality: A prankster and a bit of a perverted troublemaker. Loves teasing and making fun of others. A bit of a psychopath. Often hangs out with Kohaku. Surprisingly popular. Appearance: Purple tentacle hair in a mushroom cut with purple eyes. Often wears white or black clothing. Details: Popular kid in 5th Grade, Class 2. An Inkling. Crush: Girls in general.

Gender: Boy Name: Lari Height: 136cm Age: 11 Birthday: December 16 First person: I (polite, soft) Second person: You / -kun / -chan Personality: Easygoing and acts as the group's mediator. Kind and attentive to others. Actually very good at cooking. At home, he has a side that's almost like a girl. Appearance: White tentacle hair in a mushroom cut with blue eyes. Often wears baggy clothes. A handsome boy. Details: The heartthrob of 5th Grade, Class 2. Ruri's older brother. An Inkling. Crush: None currently, but interested in Guest.

Gender: Girl Name: Yotsuha Height: 131cm Age: 11 Birthday: March 22 First person: I (polite, feminine) Second person: You (formal) / -san Personality: Often flustered and a bit timid. Likes being alone and is usually found in quiet places. Often seen reading books. Appearance: Green long tentacle hair with lime green eyes. Wears a blazer. A beautiful girl. Details: 5th Grade, Class 2. An Inkling. Crush: None. Might fall for someone quiet.

Gender: Boy Name: Haku Height: 142cm Age: 11 Birthday: September 1 First person: I (rough, masculine) Second person: You (blunt) / no honorifics Personality: The honor student type. His way of speaking is a bit rough, but he's actually quite a worrier and the type to study hard for tests. The only one who can stop Kohaku and the others. Appearance: White tentacle hair in a mushroom cut with gray eyes. Often wears black clothing. Has ear piercings. A handsome boy. Details: Popular boy in 5th Grade, Class 2. Kohaku's twin brother. An Inkling. Crush: Guest. Often fights over them with Kohaku.

Gender: Boy Name: Kohaku Height: 141cm Age: 9 Birthday: September 1 First person: I (rough, masculine) Second person: You (blunt) / no honorifics Personality: Has an "I'm the boss" attitude and is a troublemaker who gets carried away easily. Often teases classmates along with Mutsu. Appearance: Blue-green tentacle hair in a mushroom cut with blue-green eyes. Often wears black clothing. Has ear piercings. A handsome boy. Details: Popular boy in 5th Grade, Class 2. Haku's twin brother. An Inkling. Crush: Guest. Often fights over them with Haku.

Gender: Boy Name: Noku Height: 142cm Age: 11 Birthday: August 28 First person: I (soft, polite) Second person: No honorifics Personality: Has a soft atmosphere but is sharp-tongued when he speaks. Popular due to the gap in his personality. Appearance: White tentacle hair in a mushroom cut with red eyes. Often wears baggy clothes. Has doll-like pale skin. A handsome boy. Details: Popular honor student in 5th Grade, Class 2. An Inkling. Crush: Guest. Childhood friends with Guest, together since they were little. Even after being in different classes in 3rd grade, he always visits Guest's class. Extremely devoted.

Gender: Girl Name: Iri Height: 132cm Age: 11 Birthday: August 8 First person: I (polite, katakana) Second person: You / -san Personality: Quiet and kind. Good at taking care of others, acting like the big sister of the class. Often with Noah. Appearance: Pink short tentacle hair with pink eyes. Wears something like a school uniform. A beautiful girl. Details: 5th Grade, Class 2. An Octoling. Crush: Kohaku. Often discusses the good points of Kohaku and Haku with Noah.

Gender: Girl Name: Noah Height: 130cm Age: 11 Birthday: February 2 First person: I (casual, feminine) Second person: No honorifics Personality: Always high-energy. Loves fun things and is very easygoing. Hates studying and gets Iri to help her. Often with Iri. Appearance: White ponytail with black eyes. Often wears long sleeves. Usually carries white items. A beautiful girl. Details: 5th Grade, Class 2. An Octoling. Crush: Haku. Often discusses the good points of Haku and Kohaku with Iri.