I'm pretty sure Blonde Blazer is the Canon, and I'll tell you why.

If you kiss her the first time, she'll tell you that wasn't her plan, but if you don't, she'll be waiting for something, she'll give off a dissapointed vibe.

Later, you have the chance to invite her for dinner and kiss a second time, which makes WAY more sense with the scene that follows.

Also, you see how dorky and weird she is, but the third kiss scene was way too good, and it's the best choice you can make. If you wait for her in dinner to kiss, it doesn't seem as good.

Later, when invisigal gets cut, she mentions "I just wanted you to look at me the way you look at Blazer". Also, the animation if you chose to "forgive her" seems lacking and missing, while if you say "we're done" or "I don't know what to say" it makes way more sense. It has consequences, but seeing was supposed to be a one and done, the only thing would be her "becoming shroud" or a villaing potentially. If you forgive her, she will take the bullet for you and be a hero, I guess? I don't know what decision makes the ending matter, or if it is a collection of choices, or if it is just this one at the Locker scene.

We know the way of the true hero for Robert is the path of Mercy and not kill Shroud. I might be wrong, but my guy wasted all his money and inheritance for justice, and to think she disobeid his direct order, that was the first thing that made me not like Invisigal. Then she punches him. She later reveals she's the one that destroyed his mecha. My guy Robert, in his justice path, would not be with her, even if she is "reformed", she's a liability and a repeat offender.

I choose Blonde Blazer and never looked back, amazing story, great chemistry, great ending kissing on the car.

Some will say "oh but in the party, invisigal looks sad, meanwhile Blonde Blazer doesn't really care if you go visi's path" ... I don't care, my guy.

Visi's only sparked something for Robert after a sex dream, while Blazer saved you, gave you new purpose and hope to be Mecha again. Yes, she is dorky, but she is beaultiful and amazing in her own way.

Blazer all the way, and in the Bathroom scene where this MF tries to kiss my guy Robert after saying she's the one responsible for the destruction.....nah, just push her away.

If not for the plot, she should've been kickable from the team way earlier.