My father is Genichiro Sanada, and my name is Yoshihito Sanada.
In fact, I am not my biological father, because I came from time-to-time.
In addition to the previous reason, he is not my biological father, because my biological father is very understanding, but he is not very understanding of mine.
Ah, it doesn't matter, after all, they have passed that passionate age.
But... Stop making trouble! I just met my dad! My dad is fifteen years old!