[Reducing Mosaic]START-263 A once-in-a-lifetime proposal NTR 'I want you to sleep with another man before marriage' She was told this by her boyfriend at the moment he gave her an engagement ring. Unable to break up now, she reluctantly accepted it. The masochistic girlfr

Tsuna and Saito, who have been together for five years. It was supposed to be a date like any other. In the hotel suite, Saito suddenly took out an engagement ring and proposed to Tsuna. "There's one more important thing I want to talk about" Saito, unlike his usual self. A heavy atmosphere filled the room. "I want you to sleep with another man before we get married" Persuaded by Saito, strangers kept appearing in front of Tsuna...