Rumbleside City

Rumbleside City is the last major city on the West coast of the Eternis region, and has a fierce, battle-loving culture. Trainers come in mass to challenge Rumbleside City's Gym Leader, Gaston, who ranks among the most popular of Gym Leaders simply due to his charisma and good looks alone. As they say, "No one fights like Gaston, douses lights like Gaston, in a wrestling match nobody bites like Gaston..." and so on and so forth. He really is a charming guy, and it is considered a mark of pride among the most competitive of battlers to earn a Heartbreaker Badge.