Game is absolutely flawed but story is so good that I had to finish it.
You have to play chapter 6-7-8 3 times to get the true ending
8 Chapters in total, either you finish the game at ending 1 and leave with loose ends or you suffer like me and go through ending 2 and 3 which is 100% bad endings. Ending 1 is also a bad end but debatable. True ending is absolute peak cinema with no loose ends and everything is tied though you might miss some details since all the routes matter.

Combat was mid but serviceable
Music is honestly top tier, so far Furyu games hasn't disappointed me with any of their music though I only played Monark and Crystar but both are peak.
Story for ending 1 is 6/10, ending 2 is 3/10, ending 3 is absolutely miserable and gets a 1/10 from me plus the road to play ending 3 was filled with peak sadness and annoyance. Ending 4 is Giga Cinema though you could say it is also sad and contradicts ending 1.

I finished ending 1 at 13 hours but clocked in at 21 hours for all 4 endings.
The one annoying thing that pissed me off was Rei Hataba (Our MC) going through an annoying phase around chapter 3-5 but then she got better, honestly each route is for each character where the true ending is Rei's chapter.

Nanana is also best girl honestly, girl made a depressing game into slightly less depressing game

so. so. so boring what a waste of my time

X->X->X->X->RT->repeat

Congratulations! You beat the game.