In need of help to form a Pokémon League in Alola, Professor Kukui enlists the help of a former Island Challenger who was on his way to become Alola's first champion. What he didn't expect was for the person to bring a load of new problems for Ash and his friends. Watch out Alola! There's now two Sun's among you! Eventual Smarter/Stronger!Ash! Ash x Mallow and Sun x Lillie.