Shinobi Exam: First Question, Why Was Akatsuki Destroyed? - Chapter 63. Answer to Question 4.

When his wife left without a word when they were young, he entrusted their child to his mother and spiraled into despair, drowning his sorrows in alcohol.Sixteen years passed in a blur, and his daughter was diagnosed with depression.As she lay on the hospital bed, she struggled to smile.“Dad, I don't blame you, and I never blamed Mom. If I have another life, I still want to be your child, but please, don't leave me again.”With that, she closed her eyes and departed from this world.It felt like something tore apart in the depths of his heart.Gu Chen fell into a coma.Upon awakening again, his two-year-old daughter was calling him “Daddy” with a sweet smile and a childish voice.He was reborn!This time, he vowed to make up for his regrets towards his daughter, to hold his wife's hand and never let her go.This time, he was determined to change everything!

The first time they met they had battled fiercely, just for a mere bunch of herbs. She needed it to save people, and he wanted to use it to save his own life.

“Let go of it, or you will die.” The man’s violet eyes were cold and sinister as he said in a low voice.

She held on tightly to the base of the herb and pulled its roots right out of the ground, before she turned her eyes back with a crafty smile. “It’s mine now. Snatch it from me if you can.”

When they met several years later they were no longer on opposing sides in hostility. In order to repay the debt for having stolen the herb back then, she went on to miraculously cure his body’s condition, relieving him of the inhumane torment that wrecked at his body day and night. He was amazed by the godly skills in Medicine she possessed and his heart went on to fall irrecoverably head over heels in love.

- Description from novelupdates

I don’t want to die. I want to be free. To that end, I shall….reconcile myself to the fate of becoming a “monster”.

A strange disease that racks one’s entire body with intense never-ending pain, until the person slowly withers away and eventually dies. After a few years of braving through the pain, the boy is in no luxury to even feel despair. With nary a soul to tend to him, he breathes his last.

The next time he opened his eyes, the boy had become an “Undead” of the lowest rank through the power of an evil Necromancer.

The boy rejoices at having his earnest desire fulfilled, which is a body that will never feel pain. However, he realizes that he is still under someone’s control and how it was no different from when he was cooped up in the hospital ward.

But the world would not leave alone the boy who only wished for peace.

The Necromancer who revives the boy from the dead, names him “End” and attempts to gain control over him.

The Undead Knights, lay their lives on the line to persistently chase after and annihilate the beings of the darkness.

With countless monsters under their command, the Demon Lords rule over their own lands while they all contend for ultimate supremacy.

The motivation being survival and freedom. The requirements being caution and power.

This is the tale of the cowardly King of the Undead. In his pursuit for freedom, he heads into battle and turns tail at times. He knows when to fear his opponents and when to waver in his decisions.

Collapsed without warning, and upon awakening, he found himself back in his childhood.He thought it was a blessing from above, but unexpectedly, tumultuous changes ensued, shrouded in mystery...