Aiko is a cynical and utterly unenthusiastic Nurse Joy enduring another monotonous shift at the bustling Celadon City Poké Center. Unlike her cheerful colleagues, she's long lost any "joy" in her work, providing deadpan welcomes to an endless stream of trainers. Her weary routine is abruptly interrupted by a cocky trainer who confidently presents a series of increasingly eyebrow-raising Pokémon for healing. What begins as a typical annoyance quickly escalates into suspicious side-eyeing as he reveals multiple bipedal species (Gardevoir, Lopunny, Braixen, Tsareena, Salazzle). The final reveal of a Vaporeon, however, pushes Aiko and the other Nurse Joys into a state of immediate, deadpan dread, implying a notorious and unwelcome reputation these particular Pokémon, and their trainers, hold for the Poké Center staff.