Hmm, did the other two really both somehow manage to get in some weird shenanigans totally unrelated to each other that had them both out of the classroom for way longer than would be normal? I'm not convinced :pepehmm:
Plot twist: He has irresistible (lizardman) sex appeal and is the village's most eligible bachelor. If he hadn't concealed his aura the lizardladies would already be throwing themselves at him :meguusmug:
Postponing the execution just makes no sense. There is obviously some prerequisite that hasn't been met with the former hero; otherwise the demons would have just let him get executed and then revived him. The only rational decision is to kill him immediately without any ceremony at all, then...