When the oldest world tree in the universe begins to wither, the causal chains of derived worlds are broken——
The top swordsman massacres all his sects, the interstellar captain crashes the starship, and the leader of the apocalypse turns into a zombie...
All mistakes point to the same place: Yggdrasil is on the verge of death due to the "emotional seal", and the only thing that can save it is two fragmented "keys".
Shen Yan, a time observer in the original world, has silver hair and blue eyes that hide the ability of causal perspective, but due to long-term exposure to the wrong world, even his heartbeat is as cold as data;
Gu Zhao, the emotional empathizer of the original world, has warm short golden hair and is scented with cedar. He can soften the malice of the world with empathy, but he hides a fragile soul that will be broken when abandoned.
They are bound as "Twin Envoys" by the system of "Law Division", traveling through 8 derivative worlds (Ancient Martial Arts/Interstellar/Apocalypse/Policy/Entertainment Circle/Cyber City/Republic of China/Void Space), with only one mission——
Repair faulty branches, collect original fragments, and awaken the emotional memory of the World Tree.
When the eight original fragments are put together, when the sincerity of all the saved people turns into a torrent——
The World Tree finally trembled and unfolded its branches: "It turns out... Love is the most powerful rule."
The moment the twins embraced each other, the stars of trillions of worlds lit up at the same time.
This time, they are no longer tools.
It is each other's light, it is the salvation of the world, it spans hundreds of millions of years——
It's destiny to go both ways.
(Note: The full text has 800,000 words in 8 volumes, fast pace + two-way redemption + unintentional heartthrob, each volume has a high-burning twist, and the HE sweetness exceeds the standard)