Pokémon Battle Frontier
The original title of the manga is Pocket Monster Emerald: Challenge! Battle Frontier and is written by Ihara Shigekatsu (the author of Pokémon Diamond and Pearl Adventure). The manga have only one volume.
Enta, the main protagonist, is a young boy invited by Scott to participate in the Battle Frontier. The only problem is that the young is not talented for Pokémon battles so he will be helped by Rald, a Pokémon trainer (his character is based on the male protagonist of Pokémon Emerald).
The manga ends with Enta fighting against Anabel.Chapter 1: Enta Arrives at the Battle Frontier!
Chapter 2: Aim for the Top!
Chapter 3: Battle Between Student and Master!
Chapter 4: Introducing the Frontier Brains!
Chapter 5: The Predestined Battle!
Chapter 6: Final Battle: Versus The Salon Maiden