Based on the erotic game by Prekano. Takuya just finished medical school and started as an intern at the hospital. The preceptor who was assigned to him was his senpai that he looked up to, Ryou. He had strived to follow in her footsteps, but she was always a couple steps ahead. Reunited with his childhood friend Mio and subject to Ryou’s temptations, how will he proceed against the obstacles that he should overcome?