Serena is Ash's current traveling companion that first appeared in Kalos, Where Dreams and Adventures Begin. She has blonde hair and blue eyes. She wears a red hat, black sleeveless shirt, red skirt, black stockings and black shoes. In colder days, she wears black pantyhose under her red skirt to keep her legs and feet warm. When doing Ashley Morrison class, her Ashley Morrison outfit consists of: a black shirt with short sleeves, white shorts, tan pantyhose and gray flats. When disguising as Sam Simpson, her Evil Boyfriend outfit consists of: a pink shirt, red skirt, pink pantyhose and purple shoes. In school days, her school uniform consists of: a lightish blue middle school uniform, which has a blue sailor collar with two white stripes, a red ribbon on the front of her uniform, a white school top with short puffy sleeves, a blue pleated skirt with a blue ribbon on her back, white socks and blue shoes. In Skills USA days, her Skills USA uniform consists of: a white shirt with short sleeves, black skirt, tan pantyhose and black high heels.
- Grace (Mother)
- Sanpei (Love Interest)
- Hanging out with Sanpei
- Having a childhood relationship with Ash (since STS Season 10)
- Changing from black stockings to black pantyhose.
- Her rivalry with Miette.
- Her bad dreams.
- Losing her bag.