They rope you in with the sex but then have you make spreadsheets to plan out your investments...I mean in a way it is still an "adult story", technically.
Jokes aside, have fun with the game. I don't know if you want to try to figure out your own route through the game using the wiki or not, but I would say to not worry too much about having a "perfect playthrough" in your first run, it is basically something impossible to figure out, and while you won't be able to get the "best" results on everything, if you are playing like a completionist and making
moderately savvy financial decisions, then you should be able to get most if not all of the content the game has to offer.
With that said, here are some useful resources if you want any help with your playthrough:
Fulminato's calculator - this is a pretty neat tool that lets you "simulate" all the decisions of a TLS playthrough and see the results, allowing you to plot out your own route and test if it works out for your goals or not
You must be registered to see the links
Thosha's walkthrough - this is more of a traditional walkthrough made by a fan of the game based on discussions of playthrough optimizations, it will tell you exactly everything you need to do and choose and you're expected to follow it to the letter, but it will give you pretty much the best results that can be achieved in all of the game's events
You must be registered to see the links