I know the is an adaptation from a manhua source, but I haven't read it so I won't comment on that. This donghua has a similar premise to SAO, but it has people outside who are trying to influence the situation, unlike what happened in SAO. Characters are trapped and it is turned into a death game. The characters designs are nice, and though the animation (especially for the action scenes) are nice, they are a bit mismatched with the scale of some of the fights. I kind of understand why though, since character attack animations don't really fit all that well when compared to bossesthat are 10x bigger than them. Other than this, there are some big problems with the plot. Everything feels to convenient and even when the MC asks poignant questions, they just get ignored. While the "villains" or "PK players" are realistic to a certain degree, the donghua rarely questions any irrational actions of characters or people given the very unexpected situation they are in. There is also the mismatched skill of the MC. He somehow grows to be able to compete with high level characters when he's been stuck in the game for only a few days? What?

Overall, an nice watch, but not very deep. It's suitable for entertainment, but leaves much to be designed in terms of story.