After Mistakenly Identifying His Fiancée, the Young Count Committed the Following Crimes:

(Western fantasy + yandere + daily life + cool writing + harem) Yule Frencia, the youngest earl in the empire, has an angelic face that everyone loves, and an innocent personality. She is a treasure that the entire aristocratic social circle holds in the palm of their hands. Until he was drunk after a banquet, he mistakenly dragged the holy and inviolable saint into his bedroom. After a night of chaos, you will know the taste after eating the marrow. The young earl didn't know too many worldly rules. He only followed his most instinctive desire - the ultimate joy and her who brought it. "You are mine." He licked the tears from the corners of her eyes, his eyes were crystal clear, but his words were paranoid. "From your hair to your toes, it's all my mark." "If you regret it, I will lock you up and hide you somewhere only I know." During the day, he was a well-behaved and clinging fiancé, smiling at his fiancée without any haze. Under the dining table, where no one knew, his toes were already wrapped around the saint's trembling ankles. No one knows how every time night falls, the young Earl, who is known for her holiness, is forced to break into broken sobs and promises in his bedroom with the most innocent expression. "It's agreed, Phyllis." "I have to come and be 'responsible' every night." "Until... Everything here and here is engraved with my name." A joy that started from the wrong, a little earl who didn't understand love but was extremely possessive, a saint who struggled between holiness and immorality. When the real fiancée begins to notice the clues, how will this forbidden game of sunlight and shadow end?