I created this as a personal reference, and after I finished the game, I thought, why not post this too. This, I believe, is a spoiler-free guide so you don’t have to worry about anything that might spoil the story for you.
Unlike most VNs, the only branching point in Hashihime is when you choose which guy you should go after. There is only 1 end for each character. Whether those ends are good or bad, depends on you, as I thought all the ends are good and fitting to the circumstances and personalities of the characters.
Also, please note that you can’t really choose your route order as there is a specific order you have to go through. Say, you can’t go to Hanazawa’s route unless you finish Minakami and Kawase’s. Also, you can’t force it since the choices only come up after finishing the required routes.