I assumed the MC would turn into an avenger, but it looks like getting betrayed and murdered instead crushed his ego, or at least his self-esteem. It's pretty disappointing he will be just the resurrected demon queen's sidekick, without much initiative, by the looks of it. Although I reserve a bit of room for doubt, as it's possible this is only the beginning. If these new friends of his get killed by the kingdom's heroes, maybe that's the last straw to break the camel's back, not his own unjust execution.