Black Laosan's Story of Immortality

[No heroine], [System], [Ordinary daily life], [Relaxed and casual], [Slow heat] Hei Laosan, who traveled through time, unexpectedly obtained the immortality system. His years are long and his heart is full of love! Let Hei Laosan and readers and friends go to the stars and the sea together! Let's see how he grows step by step from an ordinary teahouse waiter to a being who is intimidated by countless immortal cultivators in the world of immortality!