Review Detail of Aeternabilis in In Another World With Chat Group

I dunno how this is rated so highly? No offence but the grammar is horrible. It's very hard to read. The flow is sht... This is something key in a book so it needs to be fixed asap. Something else is the characters are cardboard. There is nothing to them, no character growth or anything. It's all just so very dull. You barely find anything out at all and some of the plot makes little sense as well. I mean he is a normal human and on some random ass day from nowhere, he wants to join this special school to slay monsters for no reason? We have no motivation given, no reason. He just up and randomly wants to join... Then how he met the mc of that world and became friends is just so mind-numbingly stupid. He waved from across the track course while inside and now they are best frieds. It showed no interaction between them. Literally, waved, oh he is a nice guy for an mc and bam friends. No interaction nothing. This is a trend throughout the book tbh Mc's character is very beta as well. He has a photographic memory so I was thinking he was gonna find life very dull or something as he is too smart etc and this chat group would be something he finds interesting etc etc Like character background, growth, give reasons, explanations etc however, we get none of this. Hope that makes sense? But yeah anyway gl to author