Pokemon: Me and Darkrai's Yandere Girl

[Reincarnated as a Pokemon]+ [Can Turn Human Later]+ [System]+ [Getting Stronger]+ [Yandere Older Sister]+ [Slice of Life]+ [One Heroine]

Jiang Chensheng was dreaming of getting cozy with a big-truck girl on the highway!

Then, in the blink of an eye, he was reincarnated in the Pokemon world as a Shiny Darkrai!

The good news: the Pokemon world!

The bad news: he wasn't human anymore!

Then he awakened a System and, by a twist of fate, became bound to a genius older sister.

Jiang Chensheng: I'm the best fighter on the server. I never lose a fight!

Trainer: You won't leave me, right...?

Jiang Chensheng: ???