Great, Ruka has made a great progress, she just admitted it! Now it comes the hardest step: confessing. And I hope the manga doesn't end when it happens.
You all are mistaken the hardest step now Ruka has self reflected isn't confessing. It's seducing Suuna in a way that she recognises as seduction! This girl thinks everything Ruka does is because she is her special friend not because she is head over heels.
We will now get to witness a truly wondrous sight. An unintentionally seductive top realising what they are.
Progress!
Bet it'll be at least another volume before Suuna figures it out tho. I wonder if they'll fuck before Suuna learns what sefure actually means lol. I hope so, that would be so funny