Infinite Tower Defense for an Otherworldly Lord

This is truly the first time I've seen a protagonist who helps others and ends up owing them favors? This is real combat, not some high-stakes game. Summoning skills only last 10 seconds, and even at higher levels, it's only 80 seconds. What's that enough for?

The author's ivory tower mentality is too pure and naive, making them unsuitable for writing this kind of post-apocalyptic survival novel. To be honest, the author's mindset is more suited to writing urban novels like romance or bourgeois stories. There's a reason why not many people read them.

The protagonist is a kind-hearted person who ends up owing favors after saving people—a first for me. His strength is average. He doesn't really develop his territory; he's just constantly saving people. The main storyline feels rather confusing. My personal assessment: very average.

The later parts portray him as a pushover, making saving people seem like he's begging for favors.

Having read up to Chapter 22, seeing the protagonist directly sell 10 million units (note, 10 million) of rare mana and health regeneration potions (completely disregarding his own safety), seeing 50 million points, seeing a level 100 stone wall, I think this book is likely going to fall apart. It's only chapter 22!

These generic, overused "saintly" articles are lacking in substance; they're so bad I can't even begin to describe them.

This is so good! Keep it up, author!

Is this another Mary Sue story, or a simp story?

It's better not to write a guild creation order at all, since it was ultimately sold internationally anyway.

Many places are filled with trash. Where do they get 10 million units of stones in a day or two? Don't other people use them? And the monsters are so powerful, can they survive without a cheat code? And how many of these monsters can survive?