Robbery?

Four guys with a moderate build approached them with unfriendly gazes. Following behind them or beside them was each of their summons, equally emitting dangerous growls as they stared at Ban and Emilia. 

The area they were in right now can somewhat be called an abandoned alley. Away from the eyes of the people and a perfect place for an ambush. 

When Ban thought about it now, he could not help but shake his head

He got careless. 

He was so immersed by their conversation that he somehow ignored the direction they were going. And now, they arrived at this perfect ambush spot. 

And as expected, just like what the author of that book said,