Seo-ah is dragged on a weekend mountain hike by her boss. However, she gets lost alone in the mountain, and as it gets darker and darker, a strange black mansion and beautiful twin brothers appear before her...

https://www.cmoa.jp/title/298702/

Original Webtoon: Lezhin, Bomtoon Official Translations:Thai When the woman opened her eyes, she was being violated by a strange man. Unable to even remember her own name, she is endlessly violated day and...