Derby Stallion Breeders' Battle
ダビスタブリーダーズバトル―ダービースタリオン外伝
Yuki and her friend Mamoru participate in a game centered around horse breeding and care. The story focuses on their efforts and strategies as they raise and train their horses. The game involves competition between players to achieve success in breeding and racing. Yuki and Mamoru work together to improve their horses' abilities and performance. The manga highlights the challenges and rewards of managing a virtual horse-breeding operation.