Kouichi, a tall player in his high school basketball team, is whisked away to another world. There, he arrives in a kingdom of giants, and is asked by the kingdom’s first prince to be his bride and bear his child.

The Dark Elves were dead set on obtaining The Messiah for themselves, but unfortunately for them he was too powerful! With a harem larger than he could ever imagine, he wonders if he is actually going to survive all of this…