Xi Wei was a shut-in even if he really didn't want to admit it—the evidence was that he had only left his divine kingdom three times in a novel that's almost two hundred chapters long.
In fact, he was staying in his own domain even during the first time he slew another god, biding his time and waiting for his target to come to him and get killed.
After judging his behavior, Xi Wei eventually yielded and admitted that he was a shut-in even after he had transmigrated to another world and became a god.
"But there is a reason I shut myself in my home. This is how I'm connected to my believers in spirit, to accept their devout prayers in every moment, help them when they're in need and pave the way ahead for them!"
"And as long as I'm here in this divine kingdom, my believers would never stop. The Church of Games would never stop, and the path towards greater gods would keep extending!"