the doctor. In Night Shift Nurses Kranke, the doctor later does his experiments on both her and her sister. During Ryuji and Ren's wedding, she is the one who catches the bouquet. Ai Kodama is Hikaru's adopted younger sister and a female patient at St. Juliana Hospital who suffers from a serious heart condition. She has a very close relationship with her older sister. : : Naoya is a professional boxer and a male patient at St. Juliana Hospital who had broken his leg in an accident. He has romantic feelings for Ren, until he found out that she was in a relationship with Ryuji. Souichiro Kuwabara is a young, seemingly kind-hearted male doctor supposedly in his late 20s who first appears in the second series of Night Shift Nurses-(Night Shift Nurses 2, Yakin Byoutou Ni|夜勤病棟・弐). A few years after St. Juliana closed down due to the strange circumstances that had occurred in the previous series, he gets employed at a different hospital called Sei-Katorea General Hospital-(聖カトレア総合病院|Sei Katorea Sōgō Byōin). Dubbed "The Super Elite Doctor", he gets a lot of admirers from the female staff and a few female patients; his father is a director of two other hospitals that he runs at the same time. Despite appearing to be kind-hearted at first, it turns out to be a facade, and he is revealed to be every bit as depraved and misogynistic as Ryuji Hisakawa, as he starts raping and abusing his female co-workers at the hospital. Emi Motoi (OVA) Mana is a red-haired nurse employed at the same hospital as Souichiro. Riuru is the blonde-haired director of Sei-Katorea General Hospital. She's in a bisexual relationship with Konohara, one of the nurses employed at the hospital; it's revealed that she is futanari. Mari Tomokawa (OVA) Karen is a blue-haired lesbian nurse at Sei-Katorea General Hospital. She is shown to have a bad temper and has the personality of a typical tsundere character. Suzuka is a lavender haired nursed at Sei-Katorea General Hospital. She is shown to have a habit of shoplifting random merchandise from different stores which she had inherited from her childhood; she has the personality of a young innocent child. Sayuki is an orange-haired nurse at Sei-Katorea General Hospital. She wears her hair up in two side braids; she also suffers from a minor form of Autonomic Ataxia, causing her body to tremble in fear whenever her stress