Two Gods Battled, I Dealt the Finishing Blow, Profit?

The battle between good and evil has ended long ago, now the God of Creation and God of Destruction are fighting, trying to be better than the other, destroying the earth in the process. On the final clash of the two Gods, they dealt a fatal blow on each other, weakening them beyond their expectations and when the two lost strength to move, the ground below them opened. A man who appeared from the hole dealt the finishing blow. Losing its god, the earth started to crumble and a week after the death of the two gods, the man who ate them was summoned to another world. With the power of the two gods at his disposal, what can the ultimate hikkikomori, who stayed true to his path even when the world was ending, do in the new world?