I remember the mom 's nurse said they are related but distance relative , Phat even call the mom's parent his uncle and aunt , therefore they are cousin , she is older than him by 7-8 year according to the nurse. If we calculator the age , we know the mom was pregnant earlier in the college year , 18-19 since dao's father was in the same school but older and plus 17 years later , in the lakorn dao's birthday was celebrated , therefore the mom have to be 34 -35 and Phat should be 27-26 , which make dao and him is at least 10 years apart !