One Heart

Eevee was a shy little school girl and was bullied by the popular girls. That group had about four girls. Delphox, Florges, Lopunny and Eevee's own sister, Espeon. They bullied her for no reason. In the beginning, Pikachu, one of the cutest boys in school, was dating the leader, Delphox... but his love transitioned from Delphox to Eevee slowly...

NOPE!

That was the old Eevee and Pikachu. Here's the new one:

Eevee had been transferred from one school to another because of her parents moving and saying: "This is good! You'll learn to adapt to change!". She learned every trick to survive school, even if it meant being sassy. She could keep bullies away and keep boys from messing with her heart but still get a clean record. Her life had been copy pastes except the fact that she becomes a half a school year older at each new school. Finally, her family settles in one home meaning she won't be changing schools anymore. The first person she interacts with his the school's "cutest" boy, Pikachu, when she throws a rock at him for staring at her. But, of course, this is a Pikachu x Eevee book so they eventually get together.