[From the protagonist's perspective]
Ye Tanxue transmigrates into the body of an ordinary rogue cultivator, with a bonus "lover" who has lost his memory, has a broken leg, and is suffering from a deadly poison. It's hell from the start.
Even worse, his predecessor's lover, Huangfu Tieniu, is arrogant and bossy, and manages to infuriate him every single day.
Ye Tanxue bears the humiliation and tracks down all the ingredients for an antidote. Believing he has done more than enough, he prepares to part ways with Huangfu Tieniu.
That's when he finally learns that the world he lives in is a book, and Huangfu Tieniu was never the original owner's lover! He's actually the protagonist of the book, the notorious Demon Lord Yin Wujiu!
Everything Ye Tanxue knows is a lie made up by the original owner, who wanted to turn the amnesiac Demon Lord into his cultivation furnace. Even the poison afflicting the Demon Lord was administered by the original owner...
Ye Tanxue: ...
Damn this plot. Damn the original owner!
He may not have committed the original owner's heinous crimes, but he did deceive the Demon Lord, even if only by association. And the Demon Lord despises being deceived more than anything.
Remembering the original owner's tragic fate in the book, tortured until he begged for death but could not die, Ye Tanxue trembles with fear. With things having come this far, what else can he do? He can only atone with his life before the Demon Lord regains his memories...
[From the love interest's perspective]
A man wakes from a coma, unable to remember his name or where he came from. His mind is a blank.
A male cultivator named Ye Tanxue, eyes brimming with tears, tells him his name is Huangfu Tieniu and that they are childhood sweethearts.
Ha. He doesn't believe a single word.
The man before him is clearly scheming something. He must have an ulterior motive.
Unfortunately, he is gravely injured and unable to fight back, so he can only pretend to comply and wait for his chance.
Then one day, Ye Tanxue starts acting strangely.
He begins worrying about the man's injuries, takes him to a healer, lets him move around freely, and goes to great lengths to find an antidote...
The man concludes that the original Ye Tanxue has been possessed.
So what is this new one scheming?
Day after day, the new Ye Tanxue remains just as kind to him. It seems he really is after the man himself.
If that's the case, he can agree to become Dao partners with Ye Tanxue. He supposes.
He hasn't even prepared the betrothal gifts when Ye Tanxue fails his tribulation while advancing to the next realm. Before his eyes, Ye Tanxue turns into a storm of golden specks and vanishes into the world.
He is utterly at a loss, feeling as if his own heart has shattered to dust.
The world collapses around him. A violent headache hits, and five hundred years of memories surge into his mind like a flood...
Theme: Supporting each other through hardship