Peanut was originally an octaling soldier like the others.
Originally.
Shortly after the end of her training, she was fooled by Tartar, and sanitized.
A few months passed, and Mike arrived in the Deep Sea Metro.
It took him little to start beating station on station, splatting octaling on octaling.
However, he nearly splatted one octaling, enough to knock it out, but not enough to completely liquidate it.
That octaling was Peanut.
Upon waking up, Peanut realized that Tartar’s voice in her head had disappeared, and that her tentacle hair had taken on a different color. Then she saw Mike returning to the entrance of the station.
Shortly before he boarded, she accosted him to ask if she could come with him, which he accepted.
He left her with Macalamar, who decided to see if she remembered her training.
If you played Octo Expansion, you know how it ends.
Shortly after returning to Splatsville, Mike set out to make her an ally. And for that, he had to find out which weapon she would have the most skill with.
What a disappointment on his part, he who hates chargers, when he saw that she was monstrous in the Liter. But hey, you have to live with it. And then, being already a support, it makes a good add-on.
Since then, the two have been living together as roommates and Mike has shown what the gang looks like at Peanut.
However, there are still traces of her sanitarisation.
She sometimes had nightmares where humans started to live again, and where she submitted before them, before waking up.
Moreover, if we annoy her too much, his hair takes the shade of a sanitized octaling .
However, she remains quite jaded and distant, but does not hesitate to roast people if she has the opportunity.
The crew even invented a game for this: they would start a conversation, the first one to get roasted will have to clean the apartment for a week.