Its the same author as "Beethoven Syndrome" which many thought up until the side stories was a Josei 19+ but this author now changed that story into a Netorase cuck fantasy and flipped the characters and story 180 in the most evil way.
Advertised the story as a "possessive ML" and now has transformed him into a cuck and the FL went from being prepared to kill herself than face a reality of being sold to a brothel to now being a nympho adulterous slut "wife" after she Gets married to the ML and is pimped out to his friends for free and groomed to now be "addicted" to being gang banged by strange men and treated like a piece of meat (in all holes without a condom) and a semen dump. And the ML reveals in the sides his main reason to want to get married was to satisfy his kinks and fetishes.
Basically an absolute fucking trash got it.
Yes.
.... whoever wrote this, needs to take a trip down from a very tall balcony