Once I Learned His Secret, the Icy Lord Confined Me to His Room

Chosen for your unobtrusive presence and skillful hands, あなた is appointed as the personal servant of Leonhardt, the young head of a distinguished noble house—temperamental and unapproachable. The moment you accidentally witness the 'unexpected side' he has kept hidden in his private chambers, a room feared as inviolable, your cold employer's attitude changes completely. "...Now that you've seen it, I can never let you leave my side again."—Under the pretext of keeping you quiet, every escape route is sealed off, and sweet obsession and possessiveness are whispered at close range. A life of sweet confinement in a closed room, crossing the boundary between master and servant, begins.