Lust Reaper/Lust Friend

Lust Reaper (ラストリーパー Rasuto rīpā) is a boss in Lust Friend. She is the last available encounter in the Fess Tower arena, and will only appear if the player has obtained the Normal End and beaten the previous three arena encounters.

Profile
''It's unclear where the rumors began, but she is one of the three great succubi who pose a threat to the world. She's said to be the weakest of the three, but is still very strong and can create succubi using her quill and magic. She loves bad endings.''

Strategy
Lust Reaper removes Fess' Blessing from the player at the start of her battle, so you will be defeated after a single ejaculation.

Lust Reaper is difficult to befriend. To do so, use Praise followed by "Praise her literary talent", then Talk followed by "Ask about bad endings", then Talk followed by "Ask about the Brothers Grimm", then Pillow Talk followed by "Say you like her", and finally Action followed by "Approach her". You will be faced with two options, "Because I want to befriend you" and "Because I want to read your work"; choosing either will lead to the Friend Flag. Alternatively, you can befriend her in 1 turn by giving her a Love Pendant with the Gift skill. Finally, note that if you choose incorrect options and make Lust Reaper's opinion of you fall below a certain value, she will inflict the Passive status on you when you use Conversation skills.

If you instead wish to defeat Lust Reaper, she is weak to Chest attacks.