I’ve Already Become a God, and You Told Me to Be a Bartender?

Owen had been a god for a thousand years.
But due to slacking off, he was judged by the gods and exiled to a world on the brink of destruction.
Soon after, Owen awakened a system and received his first task.
But the task was... to create the best pub in the world?
And to become the greatest bartender ever?
Come on, I'm a god!
Thus began his not-so-peaceful life as a bartender.
[Ding! Detected that Host has mixed a special drink, which has evolved infinitely into god-tier mana liquid!]
[Ding! Detected that Host has assembled a rifle, which has evolved infinitely into the most powerful magic cannon!]
[Ding! Detected that Host has taken in a homeless man, who has evolved infinitely into the strongest human on the planet!]
Well, I guess I can accept this.
Saving the world through unconventional means starts today!