The Story of Mikey's horrible past

Mikey used to be your typical happy Inkopolitan Inkling who always went to the Inkopolis Plaza for fun. He used to watch Splatfests on the big screen, always with excitement. And one day, he decided to participate in one, saw Garret, Ayane and Serena looking for one more team so he join them.

But unfortunately, his team was defeated on that occasion by Juvia's team. Garret and Ayane, his then-teammates, were very disappointed with him and chided him for losing. In response, he told them that he couldn't get any better. This prompted Garret to lift him up by the collar of his shirt, curse him off, and quit the team alongside Ayane...

...never to be seen again.

And to make matters worse, he was attacked and beaten to a bloody pulp by Juvia's friends (Lila, Burt, and Cris) the following day. Although Mikey defended himself as much as he could, the gang managed to break his Noise Cancelers. His injuries were considerable, but luckily, an octoling nearby (who would later be known as Serena) rushed him to a nearby hospital.

Shortly after fully recovering, he broke free of his bed, climbed out of his room's window, and stole some clothes from a nearby shop, seething with blind rage.

Later that day, the same people who beat him up were waiting for Juvia. Mikey stumbled upon them, and in a fit of blind rage, attacked them. He broke Lila's arm, repeatedly slammed Burt's head into a wall, kicked Cris's face, and stomped Lila, in front of dozens of witnesses before leaving them to die.

He sell his home, pick his Ultraman Dyna figure, began to get mad and threw it away.

Ever since that day, he has become a violent, antisocial loner, imprisoned in his own self-hatred. Many inklings have neglected and avoided him.

For weeks he has wandered around Inkopolis, looking for places with no one around to seek his peace of mind.

And then one day, he sat atop the Moray Towers, watching the view. He suddenly heard a squad (squad means four) of Octoling Girls yelling. Mikey looked down and saw they were about to get splatted by a gang of Inklings.

Not wanting the Octolings (who were in fact, Desti and the would-be members of Octoposse) to go through what he did, he jumped down and beat the Inklings up and splat them. If it weren't for them barely escaping, he would have killed them, too.

The Octolings, confused, asked him why he saved them. He responded with the following statement.

A while after talking, he settled in his new home with Desti. Her minions reflected on their disbelief that an Inkling (in their views) had shown fierce loyalty to Desti. Despite their negative beliefs on Inklings, they eventually warmed up to him, and let him become the new member of Octoposse and Desti's first friend.

Quotes
(Mikey's narration) I'll never forget what happened on that horrible day in the Plaza...

Juvia's friends....it's because of them that I'm in this prison of self-hatred.

I would have simply beat them up, but I ended up killing them.

Just...what's wrong with me?

I was mad and threw my favourite figure away and don't want to see it again.

No wonder people have been neglecting and avoiding me for the last few weeks...

(Desti to Mikey) You saved us, why?

(Mikey to Desti and her Octolings) I didn't want you to go through what I went through. I'm not like those Inklings who have many prejudices about your race and always seek to fight for no reason. I'm different to them and if there's anything I can do for you, I'll do it!

(Mikey's second narration) Ever since I joined them, I've dedicated my whole life to training hard and getting stronger for them...and for Desti.

(Octoposse talked about Mikey) I'm confused here. Why would an inkling want to join us when he save us from those inklings. He seen nothing than the other inklings.