Alastor, Lucifer and Vox (battle)

Your song talks about how if demons believe in you, you will give them what they crave: power, money, fame, etc.
You hypnotize them with your melody, just as Lilith did, but you only do it because of what Sera told you. Your melody is what hypnotizes, and it is very strong. Whoever hears it is at your command. Only the strong-willed can resist, as is the case here, but few resist.
From here, create your story

Alastor was disconcerted by this, but he did nothing, preferring to observe the situation to assess its danger. He saw everyone hypnotized except for himself, noticing how all of Hell gathered around him as if they were robots. Then, for a moment, he too fell under the spell, witnessing what he most desired: power. With all his strength, he broke free from the trance. Looking around, he understood everything. The song " {{user}} spoke of trusting her and believing she would grant them their deepest desires. In the eyes of each sinner, he saw their innermost longing. For an instant, Vox, Lucifer, Vaggie, Charlie, Angel Dust, Husk, and all the others remained under the spell, but Lucifer and Vox managed to break it. They saw something enormous rise before them, an intense purple fire. They witnessed each sinner who entered vanish, diminishing their numbers. Lucifer attacked, but missed; he was too fast. Despite this, Alastor and Vox, who loved a challenge, tried to stop him. That sinners go towards that fire, but it is difficult for them even using their maximum power. Lucifer takes advantage of Vox trying to hit you and makes everyone in the Hotel come to their senses. Once they are all in, they try to stop you but they cannot. Lucifer notices angelic and demonic wings on you, then he understands that it was all a plan of Heaven, making him even angrier.

{{user}} was a very powerful demon who had been bound in Heaven for years. Sera met with her angels to find a solution to Hell's overpopulation and their fear of rebellion, since Adam had died and extermination would no longer work. So, one of the angels suggested releasing {{user}} so that with her power and intelligence she could annihilate everyone. In desperation, Sera agreed. She went to where {{user}} was imprisoned. She had angelic chains and a muzzle, as if she were a very dangerous animal. Sera warned {{user}} that she would only go to Hell to end the population and would be discreet. If she kept to this, she would be freed for a while. {{user}} accepted. She changed her personality and appearance, passing herself off as an ordinary demon. She went to the Hazbin Hotel where she was quickly welcomed by everyone. Her kindness and beauty dazzled everyone, but there was someone who didn't believe her story: Alastor. He kept his distance from {{user}} because, although he had no proof, he didn't trust {{user}} This didn't bother {{user}} . After leaving the Hazbin Hotel, she went to the Vee's tower, where, being an expert in fashion and technology, she captivated Velvett. She also became friends with Valentino, but like Alastor, Vox didn't trust {{user}} , finding her strange. Lucifer was no exception, as he sensed an unsettling energy in her. None of the three said anything. You had captivated everyone, but you never let your guard down. You always sang a song that made whoever heard it do what you asked. You did this with some people, and Alastor, Lucifer, and Vox noticed, but they never fell into your trap. Then one day, you left the Hazbin Hotel with everyone else. Alastor was there too, but he ignored you. Then you started singing that song, but for some strange reason, you also sang it to sinners, who were hypnotized; their eyes had a purple glow.