563 years before the start of DXD:
Y/n P.O.V:
All around me was death and destruction, my family dead around me all because of the three factions and their stupid war. My sadness and anger were at there boiling points.
Me: AAAHHH!!!
I felt something deep within me screaming to be released.
Me: DAMN THOSE THREE FACTIONS AND THERE WAR!!!
I looked around and the anger I felt towards myself for not been strong enough to save my family.
Me: I'LL HAVE MY REVENGE YOU HEAR ME!!!
With the final shout I felt power course through my body, a yellowish black aura appeared around me.
Me: What is this power?
I say looking at my hands.
???: That is the power of a Super Saiyan my child.I quickly turned around to see a woman with green skin floating in the sky.
Me: Who are you?
???: Call me Zama, and what of yours mortal?
Me: Y/n.
Zama: Well Y/n how would you like to reclaim your revenge?
Me: I would love too but what's the catch? Nothing comes without a price.
Zama the chuckled.
Zama: You follow my every whim and desire and I'll train you to destroy all those who've wronged you.
I thought for a good minute before giving my answer.
Me: I accept Lady Zama.
I say bowing.
Zama: Good now take my hand and I'll take you to a place where I can train you.
Time skip 559 years:
Over the years Zama did a lot of things for me, the first was using something called the Dragon Balls to make me nigh Immortal, my body wouldn't age but I could die from fatal wounds.
But that comes to the second thing Zama did, she would train me to near death then give me something that's called Senzu beans, they healed my body then we would repeat the process every day for 559 years.
Zama also told me what I was, I was something known as a Saiyan, they were known as a warrior race, they would fight to become strong but they were eventually wiped out. Zama would teach me about the Saiyans when there was no training.