It's not the cliffhanger that pissed me off but how bloody useless the MC and Hero are.
So I get they are sixteen and lazy, so the Hero and MC aren't leveling like crazy and using every opportunity. Sure the MC could be unlocking super powerful spells and merging them all the time. That's just the MC's normal confidence issue of He's not the Hero and letting the self centered best friend Hero take all the glory. Even if they think the world hangs in the balance.
No, the reason that I think they are both useless beyond the Hero thinking he's the center of everything is how the MC doesn't use his Admin powers. We learn and this is a 'minor' thing in the book, like not even a full chapter worth of focus, that the power to change class sets the person who changes class back to Level 1. Now, unless this is a hack for the target to keep their stats, in which case power level from 1 to 10 for free stat points would be a thing. That it's not mentioned make it seem the stats go back to level 1 too. Nor does the target need to give permission or be aware of it as we learn.
So the MC has a power, that he can instantly change anyone like.. DEMON LORD or KING MAGE of Odrana to FARMER level 1, resetting all their non-dungeon stats to level 1 and making Orrin's negative stat buffs work on them instantly and removing all their class specific spells and skills.
The fact he DOESN'T at all use this, makes this book so stupid. He literally is told he has GOD like powers and never uses them, no matter how bad the situation. HE CAN WIN ANY FIGHT IN ONE MOVE!
I can get past him not inverse heal small wounds to create small wounds, not looking for upgrades to meditation or combos with it to regain more mana, or a million other small, He's a teenager and doesn't put in the effort thoughts. BUT that he has the OP power and ignores it so that the hero can feel important? Even at that cliff hanger ending? That's...Is it him or the author who is a moron to make such a big loophole power?