Progeny System: Bought by Stunning Noble Sisters

Synopsis

Transmigrated as a lowly slave, I was bought by two stunning noble sisters! Their goal? To use me as a "tool" to impregnate the elder sister so she can secure her noble title before an arranged marriage! Just as I thought my life was at their mercy, I awakened the "Progeny System"! Conquering top-tier beauties grants me infinite rewards and max-level physical enhancements! Watch how I turn from a disposable slave into the master of my destiny, conquer the arrogant noble sisters, and build my invincible empire!