Sonic, Tails, Knuckles, and Amy meet Perci outside her house near the gate of the unnamed village. She asks the team to energize monuments to strengthen seaside defenses on the Bygone Island, with Sonic personally agreeing to the task. After the team finish this side mission, the bandicoot rewards them with a Power Glyph of the player's choice, and promising them to a toast of victory after Lyric's defeat at the end of the game's story.
In "Battle of the Boy Bands", Perci was one of the brainwashed Justin Beaver fangirls obsessed with his mind control music. She attended a Justin Beaver concert in which Sonic's band, Dreamboat Express, challenged him to a sing-off. Perci and the other fangirls were freed after Sonic used a counter-frequency on Justin, then cheered on Sonic's band under a new name, Dude-itude.
In "Fire in a Crowded Workshop", Tails went inside his smoking workshop and saw Sonic, Perci, Knuckles, and Amy covered in soot. Sonic tried to explain what happened to the workshop: Perci had gotten in a bike accident and hurt her arm. Sonic introduces himself to Perci and brags to being the "fastest hero in the world", "purveyor of justice", "righter of wrongs", and "eater of chili dogs", trying to win Perci over with is suave personality and overall loyalty towards the injured bandicoot. When they reach Tails' workshop, Sonic repaired her bicycle. Amy asked Knuckles for a pillow, which lead them to arguing who is the boss in the team. They fought for the pillow, despite Sonic's protest to behave, and suddenly, the workshop caught fire. Sonic was able to extinguish the fire with his super speed and some buckets of water, and blamed Knuckles for starting it. Knuckles disagreed with Sonic's version of the story and told his own version, with Sonic showing obvious interest in Perci. Amy, likewise, disagreed with his and she told her own version, this time with both Sonic and Knuckles showing off their interest in Perci. Aggravated by the contradicting points of view, Perci told her own version of the story that Sonic, Knuckles, and Amy were equally fretting over the accident. Tails revealed to them that accident was caused by his new security system that should have gone off. Resolved, Sonic, Knuckles, and Amy went out to get some food.
In "Mech Suits Me", Sonic, while walking in his mech suit, flirted with Perci and her twin sister Staci. The twins happily waved at him, much to Amy's embarrassment. The next episode has Sonic saving Perci from a falling tree after it had been a object of misfire by FiendBot. The bandicoot thanked Sonic for saving her life.
During "Three Men And My Baby!", Perci, Staci, and Zooey glanced at the passing Sonic, Tails, and Knuckles who are feeding Lady Walrus's younger son Chumley. Perci also made an appearance in "If You Build It They Will Race", where she was one of the audience members watching the village's official Race Day and cheered for the racers (Sonic included) near the finish line.
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Due to some proofs that can be considered "romantic" like Sonic's interest in Perci, Sonerci gained some fan-following. There are a handful of fan-art of this ship on DeviantArt.