Lars and Lita's parents
This has probably been brought up by someone before, but I just can't help but wonder - who were their parents? The whole backstory is a bit "forget about it" on the matter. We know that Riggnarok started the first human rebellion against the demons, he taught people to make clothes, weapons, etc. He had that sword. Then, once the Sea of Black Tears was open, all humans, save for him, got seduced, and drank from it, thus the rebellion ended. So Riggnarok pretended to be a slave to get close to, and to murder Emperor (Empress?) Succoria, when she traveled to the future, but instead, the got involved with each-other, and made Eddy. Ok. Then we learn that Ophelia's parents gave Riggnarok's sword to Lars saying that it belonged to him - where did they get it? Why him? How did they even give it to him if they were supposed to be black-tear zombies? At the same time, Lita seems highly distrustful only of Ophelia, because her parents were tear-drinkers, and yet, none of the other human characters get the same treatment from her, not even she and Lars. But we already know that of all the humans in the first rebellion, only Riggnarok resisted the call of the Sea of Black Tears, so either Riggnarok was her and Lars' father also, or Riggnarok wasn't the only one to resist the Sea, but the only one to survive the human civil war. Also, if the Sea somehow released the original Black Tear rebels (Why? How?), how did they manage to keep Riggnarok's sword to give to Lars, if they were enslaved by the demons?