Mythical Blood King

This is the story of vampire king who get betrayal by his own blood, but was granted to second chance. My name is Agihart, and until recently I was happily enjoying blood of my enemy. This is my story, the story of how I died might vampire king and was reincarnated to another world without getting my revenge. The second chance was blessing to me rather than curse. It gives to me, the hope of one day getting my revenge. I was only child when my master Ash kill my Parent in front of me, I was hopeless just 12-year-old. After The accident I became slave to my master obedient to every command, it was when I turn 90 years old, I was able to kill ash and free myself. My Journey didn't stop there, I have made goal of becoming the king of vampire. After 100 year I have complete control under the vampire, it was all to thanks to my ability zero reset even though it has limitation. However, every time I die, I will return moment later. I was basically an immortal, but I have one weakness if I die to the same person 10 times I will die forever. That was how my family betrayed me and kill me. I trust them too much, to tell my own secret. I was an idiot. Likewise, I should have been more careful.