Yoshichou Hanakage Jigoku
The setting is Yoshichou during the Edo period. One day, Ichika, the heiress of Shisenrou, a teahouse and male brothel, saves a beautiful boy named Noa from drowning in the river. However, he was on his way to be sold to Shisenrou as a "male prostitute"....
"I saved Noa, only to send him to hell."
Soon Ichika takes over as the owner of Shisenrou, and Noa becomes its most popular prostitute. In the red-light district, where greed and lust rule, the two become entangled by the threads of fate. The story of a forbidden Edo love affair between a brothel hostess and prostitute, two people who can never be together.
(Source: Kiss, translated)