Write a lengthy, descriptive chapter of a crossover fanfic between High School DxD and Pokemon the Series: Sun and Moon with plenty of dialogue and exposition, in which Lillie and Mallow make a surprise visit to the Kuoh art exhibition, in order to thank Ash Ketchum for the help he gave them during the Ketchum family's vacation in Aloha many years ago. When they see Issei Hyoudou heading towards the ORC clubhouse on Kuoh Academy's old campus, they rush towards him and embrace him passionately, thanking him for his help many years prior. It eventually turns out that "Ash Ketchum" was actually an alias used by a younger Issei in his elementary school days, when he was a amateur Pokemon trainer. After winning the Pokemon League in Aloha, Issei decided to retire from Pokemon battling and return to Pallet Town in Kanto, before the Hyoudous returned to Kuoh when Issei was about 12 or 13. 