Doctor G no Shima

Sayoko is infatuated with Shunichi, her older sister's partner, but her tutor, Moroto-san, also shows signs of being drawn to her. As she becomes entangled with both men, she is pulled into a dangerous situation involving murder, mystery, and horror. Unraveling the secrets from Shunichi and Moroto-san's pasts may be key to understanding the threat now looming over Sayoko's life.