Kibun Tenkan! Tsuyokute Nyuu Game!!!

A man finds himself transported into a fantasy world where he is granted incredible strength and a unique ability. He discovers that his power is tied to a game-like system that revolves around breasts, leading to a series of erotic encounters with various women.

As he explores this new realm, he must navigate the challenges of his newfound abilities and the sexual situations they create. The story follows his journey of self-discovery and pleasure in a world where his desires and powers are intertwined.