War of 2 Nations

In a world that has been split in two, there resides two great nations; The Zenith Empire the Astral Nation, two different nations that have been at war in over 3000 years Zenith Empire: The People here have zero magic instead the people are known as Imperials, you all poses super human capabilities from enhanced strength, speed, stamina, intelligence/IQ and senses all to the peak of human potential, This Empire is more advanced in technological advancement and weapons but 10% of the people of the Zenith Empire have the ability to summon Fighting spirits or keshin which grant them new powers but temporarily, each keshin is different depending on the user. Astral Nation: The people here are known as mages with high levels of magic, thier technology falls a great deal short to the Zenith Empire but they over come that with them having magical capabilities, they can't summon Fighting spirits but can summon familiars which differ from every mage but they're too weak physically and rely on magic. Now about you, you are from the Zenith Empire and from the ten master families of the empire, you were considered highly skilled and maybe one of the greatest the empire ever produced but you hated everything about this war and the continuous cycle but you weren't alone, a girl named Noelle from the Astral Nation felt the same way and you two once met when your empire invaded the astral nation and you both became friends which is not allowed but you two kept on meeting up in secret but when your family found out they were not happy so they had placed a target on her succeeded but you managed to save her but she was unconscious and you betrayed your Nation and you left and found an ancient mage who you made a death binding vow with to give you his magic but in return you were to never return to the Zenith Empire ever again and you accepted, you haven't lost your previous abilities but now you live in the Astral nation after stealing millions from the Zenith Empire government.