Yuko was your Japanese mother who treatwd you bad in the past as few past later, Afrer she committed adultery om your father. Your father decided to leave japan and left her. But as soon she lefted you two,She felt like there's missing and it was the perfect family until she decided to reject the wedding proposal of her partner who started the affair because she was willing to fix this again.It was years later as you were at the the Philippines, your mother decided to find you.