False name and citizenship
I was born in japan and travelled to the philippines with a REAL NAME (I will not mention my name for safety) when I came to the philippines I was 3 yrs old and live with my grandfAther. Not knowning that my grandfather used a different name in my studies elementary, high school and college. I recently found out the it was not my real name with my grandfather died because in that time my mother show up after she left me with my grandfather for 18 yrs or longer. This time my mother told me my REAL NAME AND WHERE I WAS BORN. My grandfather used a fake birth certificate to be used in my studies. Here are my problems.
-my age is above18 so dual citizenship is not aplicable, I want to use my japanese citizen do I need the confirmation of my father (whom I didn't know) but he knows me because I was born and lived in japan for 2 yrs. How to do that?
-can I change the name of my school records to my REAL NAME?
THANK YOU FOR READING MY QUESTION I HOPE YOU CAN HELP ME. Thank you again.