She is the head nurse of the hospital. Although she is only in a position to organize the nurses, she has absolute power over not only the doctors, but even the administrative director and the hospital director. It is said that she imposes harsh sanctions on any employee she doesn't like, and rumors about her black connections abound. She is a ruthless woman who seeks more power and financial resources, and is willing to use any means to achieve her goals.

_Note: Voiced by [Yukari Aoyama](https://anilist.co/staff/95547) in the erotic game adaptation by Dark One!._

Based on the CG collection by Sakusei Kenkyuujo (搾精研究所). 
 
Yamada is afflicted with a strange disease and has to ejaculate once every three hours as a result. However, he has now broken both hands and ended up in the hospital. As a result, he has to ask the nurses in the hospital to take care of his needs. 
 
1-2. Chapter 1 (第一章); Comic Ananga Ranga Vol. 73, 74 
3-4. Chapter 2 (第二章); Comic Ananga Ranga Vol. 76, 77 
5-6. Chapter 3 (第三章); Comic Ananga Ranga Vol. 80, 82 
7-8. Chapter 4 (第四章); Comic Ananga Ranga Vol. 85, 90 
9-10. Chapter 5 (第五章); Comic Ananga Ranga Vol. 93, 96 
11-12. Chapter 6 (第六章); Comic Ananga Ranga Vol. 98, 100 
13-14. Chapter 7 (第七章); Comic Ananga Ranga Vol. 105, 108 
15. Chapter 8 (第八章); Comic Ananga Ranga Vol. 112 
16-17. Chapter 9 (第九章); Comic Ananga Ranga Vol. 115, 118 
 
Note: A live-action AV adaptation (28ID-038) was released on October 23rd, 2020.

Based on the CG collection by Sakusei Kenkyuujo (搾精研究所).
 
Our main character, Yamada, has to ejaculate once every 3 hours due to a strange disease. He was hospitalized with two broken hands, and the hospital is located in a spot where evil spirits of the mountains and rivers have gathered and possessed the nurses! Will Yamada make it out of the hospital alive? The infamous work from the Heisei era that shocked the Internet, the "Sperm Ward," has somehow been completely remade for Yanmaga! Look how we push the limits of an all-ages magazine!
 
(Source: Yanmaga, translated)

Based on the CG collection by Sakusei Kenkyuujo (搾精研究所). 
 
Yamada is afflicted with a strange disease and has to ejaculate once every three hours as a result. However, he has now broken both hands and ended up in the hospital. As a result, he has to ask the nurses in the hospital to take care of his needs. 
 
Notes: 
- The CG collection was revised in order to be resold before the release of episode 1. 
- A live-action AV adaptation (28ID-038) was released on October 23rd, 2020.

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Non-Anime Roles:
- Kaku Bunwa (Ei) in "Koihime Musou" (Visual Novel)
- Kaku Bunwa (Ei) in "Shin Koihime Musou" (Visual Novel)
- Rika in "Makai Tenshi Jibril" (Visual Novel)
- Rika in "Makai Tenshi Jibril -episode2-" (Visual Novel)
- Rika in "Makai Tenshi Jibril 3" (Visual Novel)
- Sorai Saki in "Blue Archive" (VG)

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