At some point it starts to get nice and light.

It's written like a diary, he doesn't tell us what he thinks and what his plans are, but reports from a high perspective, for example: he met the people and wondered why they were so quiet. Just like that (it's from the book) there's no sense of a story. And according to the story, before he was reincarnated he lived 5 years in the apocalypse but there's no information given out in advance, not even a little before it happens, everything is recorded like in a diary. And he doesn't seem to have any long-term plans, he just stores supplies and buys a house and for some reason after that he goes out to get more supplies at the beginning of the apocalypse even though he has literally everything he needs and can live for a hundred thousand years without a problem with the supplies he has (and according to the character's style there's no chance he'll part with even a little of his supplies (except for one box of instant noodles) or take someone under his wing). So in a nutshell, everything really doesn't make sense there. By the way, I wrote everything with Google Translate so if there are any errors I can't do anything about it (there's no way to know).