Risou no Himo Seikatsu

Yamai Zenjirou, a typical office worker from modern Japan, is unexpectedly transported to a tropical world inhabited by dinosaurs. He finds himself in the kingdom of Capua, where Queen Aura, the monarch, has summoned him. She proposes marriage, offering him a life of opulent ease as her prince consort. The queen's motivations are complex, but she requires an heir, and she wants Zenjirou to father it. This offer promises a life free from work, filled with luxury and the company of the queen. However, accepting means leaving his old life behind. Zenjirou must consider the implications of this drastic change, including the political landscape, the people of Capua, and the kingdom's culture, all while contemplating his future with the buxom queen. He must decide if he's willing to trade his familiar world for this new, potentially treacherous, paradise.