Takuya had just graduated from medical school and began working as an intern at the hospital. He had been assigned a mentor by his stepmate, whom he wanted to look up to. He aspired to follow in her footsteps, but she was always a few steps ahead. How will he overcome the obstacles that come his way, having previously been reunited with his childhood friend Mio but now succumbing to the temptations of his sempai Ryo?