Nanatsu no Taizai, Quanzhi Gaoshou Recommendations
the MC team is overpowered, and often takes their time or doesn't really go serious for most opponents. The main difference is that Quan Zhi Goa SHou is in a game, and Nanatsu no Taizai is not, but the action of both is very entertaining
both protagonists suffer a fall from grace.
both work in a bar or internet cafe afterwards
both try regain their previous status in one way or another
both are really overpowered in their respective fields
both contain a fantasy world setting