[Sidera Haters Support Group]
Pandora, who's town was burned down by sidera, nieces kidnapped & held hostage, and whom was forced to bring death & calamity to prospering nations or else her nieces get killed: ...
Vizerxa, who was targeted at a young age bc she was Powerful & also happened to be given Doomsday's Amulet, whom can't can't control her powers now, lost her wings, & is following a drastically different & worse path than she was supposed to bc of Sidera: ...
Mutari, who was literally fucking murdered by Sidera, twice: ...
Frederick "Apollo" Asyrr, whom Sidera forced to be their apprentice with the threat of giving him substantial power if he doesn't agree, which would take the fun away from hunting & killing people more powerful than him: ... what?
there's so many more characters that canonically hate Sid too lol