Responses
Could the third be Abel?
Like... Abel was/is meant to kill the person most important to him, this being his father in the novel plot.
Could the other sibling is the heroine??
Ok friends so I read a spoiler somewhere and it said that her dad is giving her these pills because she is the reincarnation of a goddess that loves her kid but is placed under a curse to always kill her kid even if she loves them to death, that’s why she loves Abel so much. The original cursed person has 2 siblings and they are cursed too. One of them is cursed to kill their lover and honestly forgot the last one but something with killing a loved one as well. The dad knows that she loves Abel so much and knows what will happen if he keeps her beside Abel so that’s why he doesn’t want the marriage. The other 2 siblings also have reincarnations and one of them works at the temple if my memory isn’t betraying me but idk abt the other, I hope this made sense