山井善治郎
from The Ideal Sponger Life
The main protagonist. A Japanese man who was suddenly transported to an alternate world and was asked to be married by the queen. His parents died in a car crash when he was in middle school, and he stayed with his uncle's family for a year and a half before moving to a high school dorm and then going off to college. His lack of family makes it easier for him to leave Earth behind, although he does spend one last night with his foster family and feels a little sad leaving them. His only reason for being summoned to Aura's world is to marry her and be passive/lazy.
The Ideal Sponger Life
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?
