Continuing

So the blue hair dude (son) - in law, fell in love with the black hairs daughter + now the black hair (father) and the daughter share the same soul (?), they can turn into eachother. The father turns into his daughter when he sneezes and the daughter turns into the father when the son touches the daughter. the son after a while soon falls in love with the father. the son and daughter breaks up (they were married but didnt have a certificate so they werent technically married)