"Safety first" was Shui Fan's life creed, until the flash flood washed away everything he had.
When he was six years old, a sudden flash flood took away the lives of Shui Fan's parents, leaving only the butterfly butterfly to accompany him as he grew up. Ten years later,
Shui Fan, who has the talent to communicate with insect-type Pokémon, set out from Greenshade Town and met various insect-type partners with different characteristics.
This is a story about loss and growth. It tells the story of how a teenager finds the process of facing life head-on through his bond with a bug Pokémon.