Mizuki accompanies her sister on a tropical vacation for a week during summer vacation, and meets Sora there. His life is already a bit of a mess, but he's giving himself a break before he rebuilds it. It's just a week?
This story shares charcters with Takumi no Eri, and is part of my Animephile.
Pikachu belongs to The Pokémon Company. Any other resemblance to people and places is coincidental.