Who knows? I know nothing about sword art online, but for this game I can say game does not feel like an NTR game, as female main character does not love male main character, and almost everyone say that Kirito and Asuna are amazing couple. But not in this game

Asuna loves and loved Inoda (name-only antagonist) and always got suspicious about Kirito (name-only main character) and blamed him all the time, even if there is no reason at all. So it's up to you to decide, but at least I think that author just assumed players would have watched or red original series.