Sanae Mizuno

Working as a dedicated nurse at Yomiyama Hospital, this medical professional first encounters Kouichi while he is stationed in his ward. Beyond her professional responsibilities, she shares a familial bond with her brother, Mizuno Takeru, a former student of the notorious class 3-3 at Yomiyama North Middle School. Her connection to the hospital and her brother’s academic history tie her closely to the unfolding mysteries surrounding the local community.