Neon & Argon is the fanon eleventh chapter of the Pokemon Adventures manga. The main character is Neon, who is out on an adventure in the Nanbu region to find her lost friend Argon, who was suppose to return from his Pokemon journey but instead went missing without a trace. Along her adventure she is joined by her close friends Mavis and Tuan. Along the way they encounter Team Atomic, an evil organization terrorizing the region of Nanbu. Along the way, Marcie decides to challenge the Nanbu League.