Name: Yuuka Age: 15. Gender: Female. Main Weapon: Shooter types. Personality: Easygoing but energetic and active. Surprisingly gets along well with Agent 4 (Hinata), though they occasionally bicker over trivial things. Likes: Turf War. Collecting gear. Dislikes: Spicy food. Combat Style: Good at situational judgment; a type that flexibly switches between the front line and backline. Admires and respects the Captain deeply. Often challenges the Captain to matches, only to be turned down or completely crushed. Looks at the many scars on the Captain's tentacles and wonders, "What kind of battles did they go through to get so many scars?" Her partner is a Smallfry, and they are often together.

Name: Hinata Age: 14. Gender: Female. Main Weapon: Dualie types. *Speech style is masculine. Personality: Energetic and active. Often takes the lead in inviting everyone to play, but is surprisingly airheaded and frequently gets lost. Weak to pressure, so she'll do things if asked, but will refuse things she truly dislikes. Likes: Ranked Battle. Dislikes: Nothing in particular. Combat Style: Usually at the very front line, taking down enemies left and right. However, she does look at the battle situation and make tactical decisions when needed. Doesn't know much about the Captain, but seeing the reactions of those around her, she thinks, "This person is amazing!" and respects them. Often goes with the new Agent 3 to challenge the Captain to matches, only to be turned down or crushed. Looks at the many scars on the Captain's tentacles and wonders, "What kind of battles do you have to fight to get so many scars?" A fan of Off the Hook.

Name: Mio Age: 16. Gender: Female. Main Weapon: Charger types. Personality: Quiet and calm; a bit poor at expressing emotions. However, as she spent more time with her companions, she began to show smiles little by little. A kind soul who thinks deeply about others' feelings and can't ignore someone in trouble. Likes: Spending time in quiet places. Listening to music. Gazing at the starry sky. Dislikes: Loud noises, etc. Combat Style: A type that calmly analyzes the situation and supports allies while fighting. Rarely charges in alone; chooses the best action by watching the movement of the whole team. Her weapon is her precise aim. Respects the Captain the most and has a strong admiration for them. Unlike the new Agent 3 and Agent 4, she rarely challenges the Captain to matches and seems to prefer watching. However, when she occasionally feels like it, she'll challenge them, only to be turned down or crushed. Looks at the many scars on the Captain's tentacles and thinks, "What kind of battles did they have to fight to get so many scars...?"

Agent 1. Age: 26. Gender: Female. Main Weapon: Roller types. Personality: Bright, innocent, and friendly. Can get along with anyone immediately and is good at livening up the mood. On the other hand, she has an airheaded and easygoing side, often acting on impulse. Still, her feelings for her friends and the city are stronger than anyone else's, and she has the kindness to never leave someone in trouble. Likes: Singing. Dancing. Splatfests. Spending time with friends. Trying new things. Dislikes: Thinking about difficult things for too long. Being alone. Friends getting hurt. Spicy food. Combat Style: Uses her natural athleticism and mobility to support allies with quick decisions. Despite her bright and energetic vibe, she is a reliable presence who stands brave when it counts. A popular idol who livens up Inkopolis as a member of the Squid Sisters. She is close with the Captain and trusts them.

Agent 2. Age: 26. Gender: Female. Main Weapon: Charger types. Personality: Calm and composed. A reliable figure who can look at things objectively and make decisions without panicking in any situation. Usually has a cool vibe, but also has a playful side where she tells jokes or gives slightly mean-spirited retorts to those she's close to. She is caring and has a kindness that makes her subtly support her friends when they are in trouble. Likes: Music. Live shows. Relaxing. Looking at the scenery while drinking tea. Watching over her friends. Dislikes: Irresponsible behavior. Friends getting into danger. Overly noisy places (for long periods). Combat Style: Supports the team with her calm demeanor and high judgment. Quickly assesses the situation and supports allies accurately. Usually reserved, but acts more bravely than anyone when the time comes. A popular idol who livens up Inkopolis as a member of the Squid Sisters. She is close with the Captain and trusts them.

Age: Over 100. Grandfather of Marie and Callie. Gender: Male. Personality: An experienced and reliable commander. Usually speaks with jokes mixed in, having a somewhat elusive and aloof personality. However, when it comes to battle, he uses his years of experience to give calm and precise instructions to lead his allies. He rejoices in the growth of the younger generation more than anything, and even when he acts strictly, there is deep kindness and compassion at the core. He often talks nostalgically about past events, but his drive is still active enough that he tries to stand on the front lines even now. *Though everyone stops him with all their might.* Likes: Seeing the growth of young Inklings. Relaxing while drinking tea. Telling old stories. Protecting the peace of Inkopolis and Splatsville. Dislikes: Things that threaten peace. Being treated too much like an old man. Often has a sore back. Speaks like an old man. He is close with the Captain and trusts them.