Fantastic Dream Upon This Wonderful Existence

Threatened with a promise of eternal torture if he failed his mission; how will this cautious, intelligent, and righteous Kazuma would fare against the odds stacked against him? How will he cultivate his abhorrently difficult teammates? How will he play the role as the Champion of Wisdom? And does the demon king ever stood a chance in the first place? Featuring (in later part of the story): Idol Aqua, Godlike OP Megumin, Perpetually Sage Mode Darkness, and Heroically Manipulative Kazuma (Updates every even days. If I ever stopped uploading for more than 3 days, let me know, most likely I messed up the timer)