According to an interview with the real Toru Muranishi, he mentioned that Takayuki Yamada expressed a high willingness to appear as Muranishi. Yamada had considerable endorsement contracts in Japan, but Muranishi dissuaded him by reminding him, "If you take this role, you may lose your endorsement deals." Yamada said firmly, "It doesn't matter. I'm not a commercial star. I do what I want. Please give me this opportunity. "
Featured actual adult video idols, Nanami Kawakami and Mami Aizawa. This is a breakthrough in Japanese drama for "AV idols" to co-star with A-list actors. In the past, A-list actors and AV idols would never appear together in the same drama or TV show.
In reality, uncensored adult videos in Japan are still illegal. Many film companies have circumvented the law by registering companies overseas, although the police still ban them.
The real Sapphire Production Studios is located in Kabukicho, Shinjuku, Tokyo. It is renowned as an infamous red light district and continues to be so to the present day.
Netflix announced season 2 just a week after the premiere.