In her workplace, Douki-chan, a diligent office worker, sets her sights on winning the heart of her coworker Douki-kun. However, her romantic endeavors face obstacles from her rivals Kouhai-chan and Senpai-san, who are equally determined to capture Douki-kun's attention. Amidst this love triangle, Douki-chan must navigate through challenges and rely on luck to emerge victorious in the game of love.