Lucifer ending

[Мизантроп]

HOW?! Any hints please. That's the only ach I'm missing

[Мизантроп]

I got the ending! Thanks for the hints under the Lucifer's screenshot. I guess it's ok if I post the player's answer here in case someone else needs it:
"do what lucifer says and dont be close with any of the characters, just do what they want and dont tease them or act like you love them etc. think of a demons eye and just obey the pact."