Tart

A washed-up villain who once was close to where he wanted to be, only for a powerful booyah to knock him and his plans out. After the events of Octo Expansion, Marina put Tartar around the area of Mt. Nantai and walked away with a smile on her face and the thought of the future. That was until a day later, Tartar suddenly woke up only to see four unfamiliar faces he had never encountered, all of them looked like teenagers who were on a weekend break from school. Thinking it was a way to finally get revenge, he tried to do his usual trickery: "Are you four kids tired of experiencing the same thing every school day? Bigger kids picking on you? Teachers giving you the bucket holding punishment? Homework seems like a waste and you want to be with the besties?" All of them looked at each other with a weird look on their faces, as if they didn't understand a thing. Before he could continue his skit, all of them grabbed him and brought him to their adventures.

Tart (the name was from Hoshiko) is now just a head telephone, with no body, no plans to destroy the ugly new city that's named "Inkpolies" or any sanitized inklings/octolings to help him out in this mess. He was now just a punching bag for the four demons to mess with as a punishment for all the things he did. It was nothing but a personal hell they made for him, he couldn't do anything but complain and threaten these kids, but he was just all barks and no bites to these four, as they dragged him around like a doll. Although, even though the personal hell was agonizing for him, he did start to learn a lot from each one of them. All from personal struggles to everyday things any kid their age would do, school, family, friends, and so forth. It started to make him think to himself, something his old professor also mentioned before when he was created: "Everyone and everything has the same struggle and challenges things that we have to deal with in life."

As much as he doesn't really like how he's being treated, he likes hanging out with these four as if they were a weird family to him and would do anything to protect them...but by the time he actually gets a body of some sort, he is definitely going to give these kids the worse haircut he could ever think of.