It seems to be a recurring pattern in this story (the villains win/good guys lose or die). Give away a bit of hope only to sap it away. Torture porn. Literally child abuse level.
The cute art style and introductory chapter mood is bait unlike a Series of Unfortunate events where it's more blatant... Also Kinda like Roland Roland/Madoka. Or those old 17th centuries tales of caution warning children not to stray away like Hansel Gretel and Little Red Riding Hood.