Review Detail of ggdfb in Small upgrade system

The plot has potential but it's too hard to move throught the story with that dumb story. There's a few things that just doesn't make sense except dummy. First you learn about dungeon and monsters before getting inside a dungeon (if the author wishes to avoid info dump just say he did look into it and give us info throught the story when it gets relevant). Second.. It doesn't take more than one brain cell to know that upgrade points are easy to acquire at first but could later on get harder to get. So create a safety net for yourself (a real one and not one the author just add awkwardly). Lately, I don't get why he is so calm and composed when all this happens to him. He even accept total strangers as his parents (even more so when he took over their DEAD son's body)...Ps : different body structure, different body language and different way of acting.. Let's be honest if they don't find anything suspicious then don't paint them as great parents...