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Clefairy arrived with Red and Pikachu in Seafoam Islands where he relaxed in a beach but Red wanted him to catch some fish for dinner. Instead, a Shellder jumped out of the water and attached itself to Clefairy. Many more Shellder attach themselves to Clefairy and he runs in pain. As Clefairy kept running, he stumbled across a cage that trapped him and the group. The village elder arrived and freed the trio. Clefairy was then given a lifetime supply of food. Afterwards, he goes to the cave where Articuno was located. Inside, he stumbled across Green's Charizard and they fought, with Clefairy being the victor. Deeper in the cave, he transforms the place into a diner but Green did not like that. After getting into a fight with Charizard who already devolved back into Charmander, he noticed an interior shaped as a castle and that many Pokémon were frozen. Clefairy found out that Articuno froze them. Seeing that made Clefairy want to battle it. He tried his best to prevent himself from being frozen but Articuno got the best of him and Clefairy ended up covered in ice. However, Clefairy managed to defrost himself and tricked Articuno into getting comfortable so that Red would catch it easily, in which he did using a Master Ball. After Red caught Articuno, Clefairy shared the good news to the elder and she showed him her Lickitung which showed the group some affection by slapping them with its tongue.