EDIT: FALSE ALARM ON THE INCEST THING MAYBE
(Spoilers below)
OMFG NOOO
I SWEAR, THEY'RE SIBLINGS!
I hope to God I'm wrong q-q
--Edit: Okay okay, so I think that the fortune teller lady is actually his sister, considering she has more resemblance to both his physical appearance and personality, so the main couple are NOT related
Beatrice