I feel like the author blindfolds us, spins us in a chair and throws us somewhere random in the timeline and with the little context we got we have to figure out when where why and wtf is happening
I love and hate it equally
I agree, it's very interesting storytelling, but it can get a bit (veryyyy) confusing.
On that note, I think the scene with the branches is set in the future, I know Junna has long hair in that scene but hear me out:
-Junna's new powered version also has long hair so maybe after getting her full powers back she gets her long hair back
-Whenever Hane is transformed into Floria Rose she doesnt have her scars anymore, so her not having them in the branches scene is not an indication that this is in the past.
-The scene is set when Floria Rose and the other Floria knights are defeated, which is something Junna is planning to do in the present.
-Junna is talking about how it can't end like this
which leads me to believe this is set after a future battle where Junna defeats the Floria Knights, then as she's about to defeat Hane, Junna looses her power again and Hane is now too weak to stop the other person from attacking her.
I also agree with the credits that Hane talking about "wanting to protect her first love" might be more of an admission that she had a childhood crush on who she thought was Junna, not exactly confessing outright that she loves Junna at the moment.