I'm a Dog, so It Makes Sense to Live Forever, Right?

[Immortality + Alien Beasts + Daily + Relaxation + Funny] Lu Changsheng traveled through time and became a newborn puppy. He also came with an eternal longevity system and had endless lifespan, which could be replenished once a year. So... The head of the Wang family: "Little monsters dare to come to my Wang family and act recklessly. Don't you know that my ancestor is invincible in the world?" Lu Changsheng: "Damn it, if you give me some more time..." The head of the Wang family: "If I give you another ten thousand years, what can you do?" Ten thousand years later. Lu Changsheng happily came to the tomb of the ancestor of the Wang family and danced: "Where is your ancestor?" Everyone in the Wang family: "..." From the perspective of an immortal dog, he puts an end to the mundane world, enters the prosperous age of immortality, experiences darkness and turmoil, witnesses the end of the Dharma, and watches the death of all souls, spanning the long river of time...