I found the guide but I don't want to replay the whole game... anyone know how to import saves on a Mac?
You can play the game again using cheat codes to get items you need and speedup your stats.
It'll be less painful than playing it normally.
But if you want my opinion, you should have a save file for every important decision because in the future, let's say Hyao introduces a NSFW scene between Tao and the MC, but you need to have the Tao Slave route.
After finishing the game, start playing it again in different saves and take this opportunity to try new things (maybe you even found something you missed on your first time?).
Anyway, good luck with that :)