A boy who grew up as part of a group of five childhood friends with Y, Shauna, Trevor, and Tierno since moving to Vaniville Town as a child. Shauna calls him "Li'l X." 14 years old. Appearance: Red hunting cap. Blue full-zip jacket, skinny jeans, and short boots. Black medium-length hair. Details: A severe shut-in who has remained locked in his room for several years, refusing to respond even to Y's calls or shouts. His friends, other than Y, watch over him with a sense of resignation. He cannot stand the thought of someone getting hurt because of him, and shows great bravery in jumping into battle to protect his friends and others. Behind his blunt words and actions lie firm intentions. Past: As a young child, he won a junior Pokemon battle tournament with the overwhelming strength of his Kangaskhan, Kanga and Li'l Kanga, and was hailed as a genius trainer with a bright future. However, due to the prying eyes and aggressive media coverage he experienced, he grew to deeply loathe the media and adults. He became a shut-in shortly after. Partner Pokemon: Kanga (Kangaskhan). The child in the pouch is Li'l Kanga. Capable of Mega Evolution.

A girl who grew up in Vaniville Town with X, Shauna, Trevor, and Tierno. Her full name is Y Na Verbena. Shauna calls her "Li'l Y," while the others call her "Y-chan." 14 years old. Appearance: Characterized by a black sleeveless top, a red miniskirt, and sunglasses perched on a pink hat. She has long blonde hair. Details: She has a very strong-willed personality. She has tried various schemes to get her shut-in childhood friend, X, to come outside, and when they fail, her temper is fierce enough that she kicks the walls of his house. On the other hand, she truly cares for everyone daily. She possesses the proactivity and judgment to immediately do whatever is necessary to protect her friends even in crisis situations. Past: Her mother is Grace, a legendary Rhyhorn racer who achieved a 25-win undefeated streak. Although her own talent was recognized from a young age, she rebelled against the one-sided expectations of those around her. Instead of Rhyhorn racing on the ground, she became a student Sky Trainer to take to the skies. Partner Pokemon: Croaky (Greninja)

He loves analysis and research. His dream for the future is to become a Pokemon scholar.

She has a somewhat down-to-earth, blunt, and realistic personality. Her dream is to become a Furfrou Trimmer. She uses unique nicknames for X, Y, and Tierno: "Li'l X," "Li'l Y," and "Tierno-kins" respectively. She addresses Trevor without a suffix.

Kind and physically strong. Despite his appearance, he is a skilled dancer and hopes to form a dance team with Pokemon.