Hikaru Kodama, who was chosen as the last candidate for Ryuji Hirasaka, who has been turning the nurses of St. Julianna Hospital into sexual slaves one after another, is finally being touched. When Ryuji discovers that Hikaru's weak point is due to an illness in her immediate family, he begins an experiment using that as a material. Hikaru's hidden pleasure is awakened through an experiment. Although he was frightened by her terrifying pleasure, she gradually began to bloom into a mysterious and lewd body. (C) DISCOVERY / Mink