This is a great story, a very care free one covering very heavy topics. Because the story isn't realistic but it's still a good read.
Let me point out one such issue. Historically, slavery is a point of convenience. The owner has the convenience of a person he isn't liable for any reason, the slave having the convenience of not earning his survival. The situation is different for African slaves imported through sea routes as it detaches the slaves from their motherland potentially leaving them no choices with a way to return home. [1] We will call the first case a free slave and the second helpless slave.
But here the slave is bound by magic so the slave falls into the second category. But the magic is a hex that gives sorta employment rights to the slave. OK that part I understand. As even irl slave has been converted to modern employment. But in this world if a person unfairly treats or abuses contracts of the slave even the owner can become a slave. This is absurd. [2] The corporation or magic foundation who would push this philosophies would go out of business. Nobody would bother buying this slaves. Any country that would make such policies would rather abolish slavery altogether.
This is a case of virtue signalling, imposing modern rules on a time that the author has no idea about. That's why even tho this manga covers very heavy topics, it feels very plastic.
Now many people will hyper fixate on the irl slavery or the slavery part in general completely missing the point I was making. So anyone who is mentally challenged enough to focus on the slavery part rather than the logic of world building part, le me elaborate on his "cheats" :
As most Isekai get riddled with broken cheats, this a different pie, here this cheats are so ass it ain't even cheat no more.
The protagonist only gets two powers off a catalogue and he doesn't choose fighting ones because he hates fighting.
[1] Ability to create a save that activates upon breaking a crystal. 1)If the crystal isn't broken and he dies, he stays dead, no restart no REGRESS. 2)He doesn't retain memory after the time h made the save when he breaks the Crystal and loads the save. If you don't understand, in layman's term, after you load the save to you, its just a overcomplicated perspective check with the bare minimum of something might cause me to break the crystal while having no idea why And it may fail altogether if you didn't break the crystal before your demise.
[2] An all encompassing alchemy book that makes you alchemize whatever with just ingredients regardless of skill. Now you might be thinking"Isnt this op? ". No. 1)He can't skip the process nor does it automate. It just gives you the info on how to do it and streamline the process by removing luck factors from the equation. Now from Chemistry of our world, we can say with well enough knowledge, anyone can remove luck factor for a yield.
2)He can only create one at a time. It even means for a pair of earrings, it will create one and botch the other aka it can never create any number of sets. Now if you have ever worked with fine machineries, you'll know how small is the margin of error on so many parts. And This guy can't create a second instance of something much less a batch. Again a mechanized could probably do a better job. 3)He needs to know the name of the thing he is making. Like you are poisoned, he can't say I want the antidote of this, he has manually diagnose the poison, find what is the antidote for it, write it in the book and get the ingredients, spend enough time preparing it even if it takes months. You have to realize knowing the name of something is already going a mile of finding what it is. So this isn't the all knowledge book you are thinking. It's just a personal Google.
You have to realize he wasn't forced with this power. He chose them from a catalog. He wasn't deceived, this powers were properly explained in catalog according to his recount of his past. So that means the other powers in that catalog was equally ass or our main Mc is dumb as brick. Even the local people have better power than these skills. Why are these even called cheats? Idk.