Mars: Used to be in a team called the Earthlings. They were a really powerful squid team. They battled both competitively and for fun, and they had REALLY high ranks. And they managed to date eachother without internal conflicts (Luna + Terra and Mars + Venus were the couples) But one day, their leader, Terrance (commonly known as Terra) disappeared. He revealed that he had moved to another town for secret reasons. This lead to internal conflicts amongst the remaining members and eventually, the team disbanded, and Mars broke up with Venus.
Mars took his life to battles and fighting (more than he did back in the Earthlings), and became an agent. Then Story mode happened. After he saved inkopolis, he get bored of that, so he decided to do turf wars again. He eventually gained a reputation of being a really powerful solo battler, and if he was on your team, the rest of the team considered each other lucky. One day, he fell into a team of a ragtag bunch of rookies. He wasnt