The phrase appears to be a specific reference that likely stems from a niche fan community or a specific online product listing, as there is no widely recognized Japanese drama series with that exact title.
"Milky Cat" operates as both a brand and a specific aesthetic within the Japanese underground video market. Rather than a traditional narrative drama, it is better understood as a variety-style or documentary-style entertainment piece tailored to a very specific demographic. -DMC-10- Milky Cat 10 - The Legendly Bukkake Schoolgirl Part
While there is no widely known Japanese drama series titled "DMC-10 Milky Cat," the "DMC" identifier is frequently associated with the franchise in Japanese entertainment. Devil May Cry (DMC) Animated Series The phrase appears to be a specific reference