Checking in on this again because I'm still very interested in this game (love the concept and art style) and the dev seems quite responsive (huge kudos)!
Is there any plan to add a story mode that skips the card battling? It's well-executed but not my jam (I'm here for the sex and I don't have a ton of time lol), and that has kept me from playing/supporting so far. Based on the reply/reactions my last post about it got (sorry to double-post, but I don't think that one caught the dev's eye) I'm not the only one
Unfortunately, we don't plan on adding a feature such as that. The game is as it is and the closest thing we can offer is the in-game cheat system that allows you to manipulate your levels and your money amongst other things. This would basically grant you everything you need to easily beat the boss battles and you won't even have to touch the optional SMS battles for grinding. This of course is provided in the 'Manager Tier' of our Patreon.
You'll still need to play through the boss battles and accumulate cards for your deck but that's by far a much bigger time save than having to work your way up the levels and money.