One of my main points of complaint with these stories is when the power granter is a recurring character. I'm talking about all of these high school, system focused manhwa's like Reality Quest, Quest Supremacy, and Absolute Obedience. They're all good good examples of NOT doing this.
I enjoy them specifically because the systems themselves aren't actual characters. We get to watch the protagonist grow as a character without constant interventions or reminders of the power/system. It feels a lot more like it's the main character's decisions and actions that advances the story, even if the protagonist is influenced by the power/system’s presence. Sure, we get glimpses at what's happening behind the scenes in those manhwa, a little bit of lore here and there, but it's always very subtle and low-key until it's relevant, usually much, much later on.
Which is why I really don't enjoy the power-granting entity in this story. I think one of her only early appearances should have been when she first granted the main character his 'power'. As the story advanced and he begins to explore the supernatural aspects of his world and dives deeper into society’s underbelly, he'd learn more and more about the Grim Reaper who granted his power.
That would have allowed for small peeks into the bigger picture of his world and painted the Grim Reaper in a far more important and mysterious light. She could been an absolute badass of a character, but they fumbled the potential grandeur she could've had by adding her as a recurring, mostly useless character so soon into the story.
Another problem I have is the lack of a dark tone when the story seemingly set it up to be that way. First off, the main character is suicidal. It's due to not only being severely bullied and beaten, but also because he had no family left since his mother died.
So, that in itself is pretty dark. Then, our main characters sells almost all of his lifespan. So, he has one year left to live. He's obviously given up on caring about life at this point. His only goal is to find out where his mother is, no holds barred. He was clearly dead set on doing whatever it took to find his mother's soul... Yeah, forget all of that. He isn't at all the man hellbent on finding his mother that the author tried to portray him as.
He's living like he's not going to die in less than a year. The way he speaks about learning to fight so he can be better than when he was bullied is crazy stupid. Talking about all of this self-improvement bs, about how he shouldn't get used to using his tickets constantly because he needs to be good himself... Like, BRO. It doesn't matter. You're dead in less than a year.
Honestly, if the author had tried to tell us that the reason he wasn't gonna use his ticket to win a fight is because he didn't want to waste them, I'd understand. BUT no, the main character specifically had a stupid ass flashback to when he was getting bullied as the reason he didn't want to use a ticket. "Am I useless without a ticket...?" Yes, you are. That's why you sold your entire lifespan to obtain them. Be fucking for real. Even the senses you've gained are because of the tickets.
I understand that there's probably going to be a plot convenience where he actually gets to live longer than a year, but the author should try the tiniest bit to not make it soo fucking obvious. I want to see the borderline suicidal protagonist that we saw a glimpse of in the beginning, the man that had nothing to lose so he'd do anything to achieve his goal. Even forsaking his pride in certain scenarios and using his tickets to save time, because why would he put in tenfold the effort for less than 1% of the rewards that using a ticket would give him when he has less than a year of lifespan left.
I was really hoping for a gritty, no-holds-barred character who, given his hopeless circumstances, would fully exploit his abilities without hesitation. A shame, I say.