Hello. We don't have plans to make a walkthrough guide for Prince of Suburbia since it's very linear. As long as you window peep and go into the bathroom every day in the mornings you should unlock all the scenes you need to. The only point you need to make a save is before you pick the appearance of the boss since they both have their own lewd scenes locked to each appearance.
Here is a guide on Steam if you need more info:
https://steamcommunity.com/sharedfiles/filedetails/?id=2807104340