Chasing Immortality All Your Life

In a remote village, the two Lu brothers and their mother lived a poor but comfortable life. Until one day, a huge phenomenon appeared in the sky, and a bolt of lightning struck the two brothers Lu Tianyu and Lu Tianhao. Survive the catastrophe! Afterwards, the elder brother Lu Tianyu's left eye seemed to be seeing things abnormally. The younger brother Lu Tianhao's arms had snake-like and pattern-shaped patterns around his forearms. They looked like scars left after lightning, and a bit like birthmarks? Is this an accident or was it planned? What path will they take? Will he embark on a journey to immortality or live an ordinary life?