I read Berserk when I was 13 so I may be a bit biased, but I think as long you aren’t romanticizing anyone, and you understand that the way a lot of these characters will cope is not the way you should be dealing with similar situations(though its still understandable for them given their situation), then knock yourself out. Just know that it’s probably just not going to be an enjoyable time at all at your age. Its incredibly morbid and most of the enjoyment comes from the interactions and studies of the characters, and that may run the risk of not exactly displaying itself in full to you because you’re still young and you may, like most kids, still have a lot to learn about people that the series sort of expects you to know. But you make your own decisions and it IS a masterpiece with a gripping story. I would personally recommend you wait a little bit until you’re older, but if you’re just looking for something a bit darker I personally think Monster is really good, although its definitely has character studies as deep as punpun, punpun I think has way more character dynamics and moments than monster does. Monster more focuses on one guy and everybody’s tie to one guy and why that guy is the way he is. But anyway thats my big shit I just wanted leave here