My Archenemy Lost His Memory and Became My Older Brother

1. Fang Xi, a judge of the Underworld, has fought Qi Yu, an agent of the Heavenly Dao, for a hundred years. They are mortal enemies. Right under the Heavenly Dao's nose, Qi Yu plays the turncoat today, making Fang Xi take the blame and defy her fate. She leaves the Underworld and becomes his subjugated official.

So she sacrifices Qi Yu's heart's blood to reverse time, returning to eight hundred years earlier. She swears to bring him to justice before he ascends.

But the formation fails. They both lose their memories, and former enemies become siblings.

Qi Yu becomes Fang Xi's elder brother, Xu Chengyan. After their parents die, the two depend on each other.

2. Xu Chengyan is gentle and composed, humble despite his status, and treats Fang Xi, his younger sister, very well.

But Fang Xi can't help being suspicious of her brother.

When he gives her a life-extending pill, she secretly switches it out and refuses to take it.

When he tucks in her blanket, she wakes with a start and holds a dagger to his throat...

In her dreams, Xu Chengyan drives her to the edge of despair. "Don't touch me."

But when she wakes, Xu Chengyan is already feeling her forehead with practiced ease, his eyes full of concern.

She curls up in a corner, afraid of his touch, only for him to pull her over and make her take her medicine, then scold her. "What are you hiding for? How can you get better if you won't take your medicine?"

Fang Xi is still shaken, but her brother's kindness feels so real.

One day, unable to sleep, she hears a noise next door and presses her ear to the wall.

She hears her brother talking in his sleep, breathing hard as he calls her by her nickname.

She uses a dream-peeping talisman to see what's going on, only to find her brother in the dream, his eyes dark and intense.

He nuzzles against her cheek and whispers, "A Xi, be good."

When she wakes, Fang Xi flees, her face burning.

How could he... How could he dare?

After that, they should have kept their distance, but they keep instinctively gravitating toward each other.

As the Heavenly Dao grows weaker, the seal on their memories begins to loosen.

Xu Chengyan once again rises to the highest office, and his wife approaches him with a cup of poison.

Xu Chengyan suddenly understands: she hasn't forgotten the love and hatred of their past life.

Fang Xi says, "It's late and the dew is heavy. I made ginger tea. Drink it while it's hot."

Xu Chengyan looks at the cloudy ginger tea, then at her.

He reaches out, grabs her arm, and pulls her into his embrace.

Xu Chengyan says, "Call me big brother, and I'll drink it."

Fang Xi refuses and tries to pour the ginger tea into her own mouth.

Xu Chengyan tightens his grip on her wrist. A soft snap breaks the silence.

Xu Chengyan's eyes darken with anger.

"I suddenly remembered our childhood days in Fengqiu. We were poor, but we were happy. A Xi, do you remember what you used to say all the time?"

Xu Chengyan kisses her earlobe, biting it gently.

"You said I was the best big brother in the world."

4. It takes her years to understand that the stirrings in her heart back then came from hating him with all her might, and loving him so much that she forgot herself.

A nightmare.

When the girl she was sees the face of her nemesis in a prophetic dream,

Fang Xi is finally shocked into realizing: how could her brother be her nemesis?

The version of herself in the dream tells her to kill her brother,

but she refuses.

[Reading Guide]

1. One-on-one relationship, happy ending. The male and female leads lose their memories and return to their youth. A slow start, then a fast-paced, melodramatic and indulgent story in the middle and later sections. Neither lead is a paragon of virtue or a saint.

2. Set in a fictional historical world, with an unconventional view of history. Please don't overanalyze it.

3. The male lead has separation anxiety in the early chapters and touch starvation later on.

4. A bittersweet, melodramatic story with an old-school feel.

5. Chapter 11 onward is a new world in the reincarnation cycle, not a flashback. (2026.9.5)

The romance is 60%, the plot 40%. This is not a story about a strong female lead.

I don't know what else to say. That's about it.

Busy with real life.

I'll update when I feel like it in the evenings before the story goes premium. Everyone can read the whole thing for free anyway. I'll see if I can finish it in 420,000 words. If not, it might end up over 500,000.

Happy birthday to me! ~ (￣▽￣) ~ Another year gone by. I'm glad to still be here.

I hope we can all stick around for a few more years and enjoy the good life together: growing flowers and plants, basking in the sun. Love you all.

Premise: Keep a calm heart.