Lust Nightmare

Lust Nightmare (ラストナイトメア Rasuto naitomea) is the main villain and final boss of Lust Friend.

Appearance
Lust Nightmare has long black hair with blue highlights, blue eyes, pale skin and extremely large breasts. She has curly black horns with blue tips, black wings with blue membranes, and a spaded tail. She wears a skimpy top and underwear, sleeves and thigh-length boots, all black with blue decorations. Overall, she looks like a succubus version of Mea.

History
Note: The following section includes information from untranslated sources, and is subject to change.

Background
Lust Nightmare was a succubus born from Mea's desire for friends. She brought Mea to the succubus world, but the girl was still unable to find friends here. Lust Nightmare proceeded to destroy the succubus world and then rewind time, multiple times.

Lust Friend
Lust Nightmare appears if, and only if, Magrut succeeds in befriending Empress. If this happens, Mea brings Magrut into a dark space and then transforms into Lust Nightmare. She explains her nature to him and states that she will now destroy the succubus world permanently. Finally, she mocks Magrut for his efforts to befriend succubi and declares her intention to keep him with her forever. In the resulting fight, Magrut talks to Lust Nightmare and eventually succeeds in befriending her. Lust Nightmare transforms back into Mea.

Strategy
Lust Nightmare is a boss that you do not defeat conventionally, as the goal of this battle is to befriend her. This guide contains instructions on how to befriend her, in the section titled "トゥルーエンド特殊ラストバトル攻略".

Of course, it's also necessary to stay alive while you go through the conversation options. Lust Nightmare's attacks always do damage equal to 1/5 your maximum Vigor (though this can be reduced with Endure). Fortunately, you have special skills during this battle: "覚悟" fills your Tension to the maximum and gives you an Agility buff, while "祈る" consumes 100 Tension to fully heal you. You should therefore use the Tension-restoring skill when you're at 2/5 Vigor, then the full-healing skill on the next turn. This will reliably keep you alive while giving you the maximum number of turns free to befriend Lust Nightmare.