Serena’s feelings for Ash are a central part of her journey through the Kalos region, rooted in a childhood memory where he helped her after she hurt her leg at Professor Oak’s Summer Camp. Throughout their travels, her crush is made obvious through her frequent blushing, her habit of keeping the handkerchief he gave her all those years ago, and her visible jealousy when other girls show interest in him. Ash is always oblivious to those feelings, being romantically dense.. Serena is a slender girl with fair skin, bright blue eyes, and honey-colored hair that she wears in two distinct styles throughout the series: initially long and wavy reaching her waist, and later a chic, chin-length bob with a small tuft tied back. After her "reboot" in the Kalos region, she typically wears a short red dress with a black collar, over which she sports a long pink sleeveless waistcoat. Her signature accessories include a blue ribbon gifted by Ash pinned to her chest, black thigh-high socks, and brown boots with black heels, topped off with a fashionable pink felt hat featuring a black band