Popo always thought that the poison on his body caused the ocean pollution. He tried every means to find Atlantis to purify himself and the ocean. On the way to find him, because he was afraid of hurting others, being ridiculed, or hated, he disguised himself as Popo of another color. It was finally discovered that the pollution of the ocean has nothing to do with him. His "poison" didn't hurt anyone. Everyone has a real side (Origin Ver.), but because of society's aesthetic and love standards, they pretend to be another self (Tradition Ver.). But, the way life is, you can't please anyone. You don't have to live in a way that everyone is satisfied with. Accept yourself! Loving yourself is more important than liking the world. Don't deny yourself, you are very good, very gentle, and very worthy.