Sanyou City is host to the first Gym the player can challenge. Uniquely, this Gym has three Gym Leaders: Dent, Pod, and Corn. The Gym Leader faced by the player is determined by the starter the player chooses. Each of them will give out the Tri Badge upon being defeated.
If the player chooses Tsutarja, the Gym Leader will be Pod, who will use a Baoppu. If the player chooses Pokabu, the Gym Leader will be Corn, who will use a Hiyappu. If the player chooses Mijumaru, the gym leader will be Dent, who will use a Yanappu.
The Gym is styled after a café; each of the Leaders serve as waiters. The gym will make its anime appearance in BW005.