From Bulbapedia, the community-driven Pokémon encyclopedia.
Phantom Thief! Pokémon V (Japanese: 快盗！ポケモンV Phantom Thief! Pokémon V), is a sequel to the Phantom Thief Pokémon 7 manga. It is written by Miho Asada, the author of the previous series.
The series is about two new Phantom Thieves, Pokémon V and K, who are both being trained by Rocco, a main character from the previous series.
To date, Phantom Thief! Pokémon V has only ever been published in its original magazine. It has never seen release in a collected volume anywhere in the world.