Careful, this Female lead is a total slut.
Here's spoiler from the novel,
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So the plot is simple, due a debt from her family to his family she is forced to marry him. He doesn't want to because she, herself confessed to him she slept with 98 other men... yeah and she's proud of it claiming s*x feels good yadayada.
Of course he isn't okay with that. A virgin, low self esteem when it comes to relationships inevitably will be compared to 98 other dudes..
In any case dunno what kind of cuck fantasy the author has and he decided to mix it with a LN.
Spoiler
Everything goes down the drain at chapter 11 when he finally surrendered and let her f*ck him.
So congrats. A pointless story about a sl*t imposing her sluttiness on a moderately decent guy.
Don't waste your time. Even if it ends up a so so way the whole story makes you reach a boiling point with him basically resembling the boyfriend character in any ntr doujin... or at least that's the impression you will feel after reading this.