Yoo Sera, who once secretly indulged in the R-rated, grimdark captivity reverse-harem game "Who Trapped Our Lady?", suddenly finds herself thrown into the world of that very game. Not only is she forced into the body of the villainess Sera Ebott, but she’s also trapped under the same roof as the male leads who despise her. The condition for escape? Uncover the identity of the one who imprisoned her. To survive and gain the information she needs, Sera must seduce those very men with her own body…!! Will Sera find a way out and return safely?