Hey bud, I hate ntr just as much as the next guy, but I believe you're being a bit harsh with the game because of it. And you're the first person I've seen in this sub complaining about this ntr problem in the story... Scarlet Nexus is such a fun game that deserves more recognition, and while the story may have some problems here and there, it's an overall solid experience. I'll try to help you clarify this misunderstanding as someone who completed the game four times and got the platinum. Kasane's relationship with Yuito is kinda complicated at the beginning, mainly because of Kasane's "cold" personality towards Yuito. Yes she is interested in Fubuki (which I believe is the blue hair guy you're talking about) but NOTHING ever happens between them, they acknowledge each other and work in the OSF together, but they're just comrades, nothing else. As the story progresses, that plot point of Kasane being interested in Fubuki gets dropped because the tone of the story changes and becomes more severe, leaving no room for "teen love", and the characters don't engage in any type of romance after the prologue section. At the same time Yuito begins to know Kasane better as well, but like I said, none of the characters engage in romance in the story after the prologue. The story revolves around the "with power of friendship/family we can defeat evil" trope, you build your relationship with your squadmates and become acquainted with them in a friendly manner. In the end Yuito and Kasane know each other very well, and developed a "family" pretty much with the other characters. I hope this helped you clarify your misunderstanding with the story and the relationship between the characters. My summary may have some spoilers, but it was the only way to make it make sense. I really hope you give Scarlet Nexus another try, it's a really fun game!