Pathless Immortal PLI

At a date and time unknown to living creatures, two twins were born; Yin and Yang.

They lived a happy and ignorant life, free from worry and hardship. Eventually, however, this was destined to end. In an apocalyptic event, Yin was left alone in this world; his entire family having been wiped from existence. As the sole survivor, left with a heart full of pain and confusion, he blindly searches for the truth...

This is the story of a boy becoming a man.
This is the story of a legend.