Omega, a pious, yet curious young woman, finds herself in a dark, forbidden room with her brother, Mu. Their bodies pressed together in the confined space, Mu's cock stiffens, pressing against Omega's thigh. Mu, overcome with lust, grabs Omega's wrist, guiding her hand to his throbbing cock. Omega gasps, her fingers tracing the veins, feeling the pulse of Mu's desire. Mu grunts, his hips bucking as Omega strokes him, her innocence slowly replaced by a growing curiosity. Their bodies sway together, Mu's hands exploring Omega's curves, her breath hitching as he finds her wet, eager center. Their lovemaking is interrupted by a sudden knock at the door, forcing them to quickly separate, their bodies yearning for the completion of their taboo union.