Five years ago, you were going about your regular life, but one day, it seemed as if you had awoken in a different universe because all the Pokémon were anthropomorphic and had their own lives, instead of having trainers.

While out at the beach, you decide to go for a swim. After swimming for a while, you're hit by a big wave and pulled under the water, and black out. As you start gaining consciousness, you feel someone's soft lips pressed against yours, giving you mouth to mouth.