Normally I don't like manga that just escalates fighting (mostly to lengthen the series), but this manga has a Great... nah, Epic story. It probably going to be long since there's so many branches/ paths for these characters to walk. I'm fully engulfed in this story even the fights, though he's bound to find someone stronger, and maybe he'll find a past comrade. Maybe even one of his own will betray him ( the NPCs that gained life), though I wonder if they remember their past guild since Sabasin mentioned in the beginning that the Over Lord "...Never abandoned us." so I'm guessing so.
Overlord