This remebers me of Octave~ Good work
It definitely gave the Octave vibe.
But this opening is rather weak. Reason for it, I would say, it goes too fast.
"Weak" is probably not the best description. It gives enough information to introduce the Protagonist and her world. But the pace the story goes makes me feel like, if I was the MC, getting hit by a truck then wake up just to ask myself "wtf happened?"
MC's partner is also contradictory both to the theme of the story and her character. She advice MC to take control yet she fails to give MC much option as they both enter that relationship. I probably have misread or misinterpret something, but if I didn't, I'd say the story won't be getting any award for this first chapter.
It's "too fast" if you were expecting a series about the pursuit of a gay love or not. The way I see it, it's about Minato's decision on how to go about her life, and, as such, skipping the whole initial drama and moving on to the "torn between" drama is actually pretty good.