Yuuto finds himself reincarnated into a fantastical world within a smartphone game, assuming the role of a noble family's third son. Blessed with the unique skill 'Noblesse Oblige,' Yuuto gains the ability to inherit the talents of women he intimately connects with. As he matures, Yuuto activates this power through a symbolic act, initiating a journey where he amasses a legion of devoted women, each contributing their exceptional skills to his arsenal. With each encounter, Yuuto grows in strength and prowess, uncovering the skill's potential to awaken and enhance abilities. Thus, a tale of relentless advancement and romantic entanglements unfolds as Yuuto assembles his ultimate harem, driven by the pursuit of power and affection in this realm of boundless possibilities.