Longevity: From the Start, I Take in the Empress and Become Invincible

[Cunning Female Emperor] [Lighthearted and Witty] [Daily Joy]

When Mu Chen wakes up, he finds that his soul has transmigrated to another world and that he is trapped in a vast mountain forest, with demonic beasts roaming everywhere and danger lurking at every turn.

Just then, he unexpectedly obtains a longevity System. He decides to lie low: as long as he can live forever, he can simply stay hidden and wait for the demonic beasts to die of old age. Once he grows strong enough, he can venture out.

One day, while cursing at a fish,

he runs into a young female emperor who is close to death. Out of kindness, Mu Chen begins a rescue mission...