I was playing on Warden difficulty and the last save after ending is on Day 38. Not sure about what you mean how did the build look like: Warden Level 45 / Slut Level 260, Stamina 1,980 / Endurance 122 / Energy 93 / Dex 53 / Charm 46 and everything else below 30.
Stamina Lv.15 / Energy Lv.43 / Strength Lv.7 / Dexterity Lv.29 / Agility Lv.2 / Endurance Lv.91 / Mind Lv.14 / Charm Lv.28
Basically I just lay down every battle and wait it out, except for the bosses that won't initiate sex attact, in which case I had to use recover then choose a sex attack myself, however in the very last fight as soon as I use recovery he'll just one-shot me to the ground again. Had to restart that last fight a few times.