Does the dad eat the sperm of his son mixed with blood ...wtf

No, he uses the sperm and the blood to write on a talisman and burns the talisman in water then drinks the water, I thought he was drinking his sons sperm and blood at first too

If we out it like that it's basically drinking diluted son sperm and blood ._.

I mean if you count the ashes as diluted son sperm and blood, then it is ig?? Idk, all I know is that dad needs to get slimed out bro