Cain swore.

Year 1551, Cain, a mere 10 years of age boy came across an Angel. A fallen Angel who's feet has been bound to chains. How beautiful ーCain thought, before sheathing his dark mana to rid the painful chains that binds the poor Angel.

The Angel looks at the human boy who saved him, making a deal.

"Get stronger, that way your sword can protect me."

ーThis was all Cain remembered, after that moment he swore to look for that Angel. Training hard, making sure to be the top in everything he does. All for that moment he seeks where he reunites with that beautiful creature that he has longed to own.

Until war came. His eyes widened, seeing a familiar being in the enemy's side, the King's soldiers. While the other mages beside him starts to cast their spells, Cain froze in his spot.