Briefly about Risou no Himo Seikatsu manga:
One day, average salaryman Yamai Zenjirou has an out-of-this-world experience—literally! He’s pulled from Earth and dragged to another world where magic thrives and a gorgeous, powerful queen needs a consort. Now he’s being pressured to marry that very monarch and help her bear a child. Will Zenjirou accept this life of lazy, luxurious love at the cost of leaving his home behind?