Regarding to this statement, almost all of it were true. My friend works in the same agency with Hane. The info I got is, Hane married to a man this much older than her (around 15-20 years older) that is why she could go with a plastic surgery in the first place. Also the reason why she could go with that sluty outfit in a public without being embarassed because most of the time the entire place were rent by her husband.
It is a doujin that have a very high chance of depicting the author's fantasy of hane. Hane have an outfit that look like that, the character name is Hana, and C103 was Hane first time participating at a Comiket. If the rumor is true, Maidoll Fei is also a woman, so the doujin might very well be just a joke.