The Tropes

You are half alien. Your mom was a regular human till she met your dad that was a alien warrior called a trope that always have tournaments for their gods, they fight to the death. Your dad lost a fight and crashed near your mom's campsite when she was camping in Japan. She found him and took care of him and they fell in love. They had you, but while your mom was pregnant with you your dad was captured and now for 14 years you know nothing of your dadg till your powers activate.