Considering that this entry you made is for the ruthless endings, it all starts when you give in to sending Asterion to the snake (don't remember his name). It uncovers different ways in which Asterion ends pretty badly, for starters, you unlock a scene of the first night with real guests, in which, while Gretta keeps talking, Asterion has a panic attack and collapses right in the dining room; and the more you insist on sending him out, the worse ending you unlock. Sending him once potentially ends with him agreeing with Luke and Kota to shackle you in the reunion, since the first bad ending is called the shackle; The second ending, if you agree with the snake with the plan of the elixir of immortality, you end up sacrificing Asterion to the bull of the Labyrinth, he can regenerate from that, but his gut is opened and he breaks, he finally snaps and is dead in life, mc dies (thankfully) because the elixir is actually poison; and the snake takes mercy and responsibility for orchestrating Asterion's final dead, and both finally go to what I asume is either Hades or the void of inexistence, since Hermes doesn't know where they went (Hermes brings the dead to Hades so it's worrying that he doesn't know about their fate). Finally the hotel dissolves, but not before Hermes throws some final curses to you for being such a horrible person. And the real Argos Panoptes and Oscar can only watch their Gold of Moctezuma fading into nothing, but at least it hints that Argos has still some plans for his bull crush.
And roll credits on a theatre curtain..... yaayyyyyyyyyy.
If you ask me, I only fulfilled the second ending, I'm not saying anything more about the other bad endings, because that one was enough to break me. I hope this helps.
Also, fuck Hermes! He didn't do enough to help Asterion. Oh! you gave him a dang creepy well to help him decorate the hotel? That's cute! Why didn't you just protect him from the beasts, why didn't you stop the other masters from torturing in the last thousands of years? You killed even those that followed the gods' instructions to a T, why not them? How come you never showed yourself to give a very broken young adult some direct support? Suddenly Olympus's family bonds matter? You could have simply beheaded Athena! Fuck you, you deadbeat bitch!