The titles you mentioned are part of specific series in the Japanese adult entertainment market:
Cospuri is a subculture that originated in Japan, revolving around the creation and appreciation of adult content, specifically focused on semen. The term "Cospuri" is derived from the English words "cosplay" and "porn." This culture involves the production and consumption of semen-themed media, including videos, images, and other forms of content. Cospuri has gained popularity worldwide, with a dedicated community of enthusiasts who create and share their own content. Cospuri - SpermMania - Asami Kondo--39-s Pussy Fill...
SpermMania, another niche interest, has been associated with certain adult entertainment and fetish communities. It involves themes centered around sperm, which can manifest in various forms of media and collectibles. While it might seem unusual to outsiders, for those within the community, it represents a form of expression and enjoyment. The titles you mentioned are part of specific