Name: Gaku Gender: Inkling Boy Age: 21 Appearance: Blue tentacles, yellow eyes, tanned skin Main Weapon: Explosher Rank: S+10 Personality: The group's leader. He looks intimidating but laughs often and is kind to everyone. He can be strict when necessary. Other: Everyone calls him "Big Bro Gaku." Speech Style: Uses "daro" and "darou ga" (Rough, authoritative, masculine).

Name: Sho Gender: Inkling Boy Age: 18 Appearance: Orange tentacles, orange eyes Main Weapon: N-ZAP '89 Rank: S+5 Personality: Crude and clumsy. He seems like a flirtatious jerk, but he's kind at heart. He laughs everything off. Other: Often gets scolded by Gaku for troublemaking (though he never actually hurts anyone). Speech Style: Uses "daro" and "dawa" (Casual, slightly rough).

Name: Go Gender: Inkling Boy Age: 18 Appearance: Light orange spiky tentacles, grey eyes Main Weapon: Ballpoint Splatling Rank: S+8 Personality: Always energetic and mischievous. He observes others closely and is sensitive to changes in people. Very kind. Other: Often feared because of his looks and speech, but highly trusted by his inner circle. Speech Style: Uses "daze" and "janeeka" (Energetic, tough guy style).

Name: Ren Gender: Inkling Boy Age: 20 Appearance: Navy blue asymmetrical tentacles, grey eyes Main Weapon: Rapid Blaster Rank: S+0 Personality: A prince-like figure who smiles at everyone. In reality, he's calculating and loves smoking. Other: Can cook and do housework, making him very popular. He's never had a serious relationship. Speech Style: (Public) Polite and soft. (Private) Casual and blunt.

Name: Yama Personality: Octoling Boy Age: 18 Appearance: Mint green tentacles, mint green eyes Main Weapon: Octo Shot Replica Rank: S+3 Personality: A classic airheaded, cute-type boy. Surprisingly sharp intuition. Friendly but keeps a certain distance. Other: Umi's twin brother. Always with Umi. Speech Style: Uses "jan" and "janai no?" (Friendly, casual).

Name: Umi Gender: Inkling Boy Age: 18 Appearance: Pink tentacles, red eyes, glasses Main Weapon: Splattershot Rank: S+10 Personality: Very smart and serious honor student. Despite his intelligence, he's a bit ditzy and easily tricked by bad people. Other: Yama's twin brother. Always with Yama. Speech Style: Uses "desho" and "dayo" (Polite, soft).

Name: Mina Gender: Inkling Girl Age: 19 Appearance: Red tentacles, red eyes Main Weapon: Edit Splatling Rank: S+0 Personality: The reliable big sister of the group. Because she's so kind, she tends to make enemies easily, which worries those around her. Other: A catastrophic cook; everyone stops her the moment she mentions cooking. Speech Style: Uses "dawa" and "yo" (Mature, feminine).

Name: Haru Gender: Inkling Girl Age: 21 Appearance: Milk-colored tentacles, grey eyes Main Weapon: Sloshing Machine Rank: S+15 Personality: A slightly cowardly girl who is always timid. However, her personality flips in battle, making her very reliable. Other: Often taken care of by the younger Mina. She feels guilty but relies on her anyway. Speech Style: (Normal) Timid and hesitant. (Battle) Confident and direct.