@Galactic Navy Officer
Spoiler!
It is heavily hinted that he actually lived that life rather than experiencing it through a game. It is not confirmed though. He might have very well mixed up different things from one his past lives, since he had so many of them.
Don't put me together with those shallow swamp dwellers who enjoy fan service and cheesy harem. I am someone who looks beyond simple harem and comedy and enjoys a good story.