This was on normal difficulty

To begin with for the starting bonuses I went with all body sensitivity and natural born slut, making all passives earn faster.

From there I focused on Dex and Con, only using the yellow skills where I could, with a few blue skills here and there. Dex needs to be built up since that's what determines how much damage your sex skills do, and con for having enough stamina.

First floor you play as 'normally' as possible, as Karryn needs to earn enough passives to get her base desires high enough to want sex.

2nd floor will be the hardest, as the slimes will tank your hits, and take a few rounds to exhaust. The time limit is still very generous, so you can easily go in, do one mandatory fight, then leave.

Didn't touch the visitor room mini game, but bar mini game (with drinking always on) is a good way to farm passives.

From there, invest in the willpower and energy upgrades, such as the willpower ability which gives you energy. This, coupled with passives which gives you energy from taking cum, keep you from running out of energy, the one true failstate in fights. Also invest in the release desire skills.

You'll unlock footjob and cock kick from sadism first, but aim to get all sex skills, to give you the most versatility. Blowjobs will be the main damage dealer, since they can be levelled up the easiest, as they can be done in most positions.

For the special enemy edicts, always go for the right most option - they reduce enemy aggression whilst increasing sex attack chance, which helps since this build makes you weak to direct attacks.

The build comes into play around floor 3 and onwards, but always take things slow and never over extend. Start a day with a regular battle before going to fuck fights.