this manga sucks, I was so hyped that i read the novel and...
1 he is kirito 2.0
2 she is Asuna 2.0
(literally)
3 fantasy to sci-fi wtf?
4 the story is messed up
5 FANTASY TO SCI-FI WHAT THE FUCK?
6 THE STORY IS FUCKIN MESSED UP
yeah this sucks
the idea was good, but it has some plot holes and the characters arrive at the conclusions in a stupid way, the protagonist was great, but chapter 19 really blew me away, it really sucked
btw srry for my bad english