Survival: Shounen S no Kiroku

The way the story started, I expected to have something amazing happen in the end but well. Where do I start with this one? It's good, for the most part. A lot of luck but the author try to stick with survival as much as they can and it's always interesting to see how mc manages to get out of dangerous situations. It got boring sometimes because of how ridiculous certain scenes were but overall entertaining. The problem really comes when other people are introduced. I was fine with the girl because it created a good dynamic between the two and we could see some prettygood character development for the both of them. He's always been alone and got used to it and the survival way while she's always been with other people and is weak and needy. Frankly that should have been explored more and the author should have spent more time with them on the island. There was also something to do with the survivors in the other island. But instead of that we got a weird stuff with the american army and some type of Japanese nationalism, it was just weird. It went from a survival story to something completely crazy and I was just reading to see where it goes. Man was that ending disappointing. It makes absolutely no sense at all. The way everything is set up is so bad I wonder if the author was on drug. It's really that second part that ruined it for me. By removing the survival aspect the story lost its essence. That's why I have mixed feelings about it.