Who's More Yandere?

Gloomy female ghost / a touch of crematorium angst / a touch of coercion / two yanderes / two crazies

(Alternate Republican-era setting) sisters-in-law -> (modern era) former pseudo-sisters

Sweet, seemingly innocent but secretly dark younger sister x gentle, prim-and-proper older sister

Also titled: "Just Who Is It That Pretends to Be a Gentle Sister, Caring for Me All Day, Then Appears in My Dreams as a Female Ghost at Midnight and Forces Me to Make Love?!"

Su Lu feels like something has latched onto her. Not only does she keep getting bizarre harassing calls, she also feels as if there's someone else in her home:

The cup she casually sets down gets put back in its place.

The dirty clothes she forgets to wash mysteriously become clean.

Whenever she showers, she always feels someone watching her.

Worst of all, despite rarely dreaming, she has been dreaming of making love with the older sister she once had, night after night...

This is all wrong! But Su Lu, a staunch materialist, would rather believe she's so tired that her memory is failing and she's become paranoid than believe there's an invisible person in her home.

That night, in the middle of a rainstorm, Su Lu is curled up on the sofa memorizing her lines when someone suddenly appears behind her.

A plain white qipao, a silver hairpin.

Su Lu can't make out her face, but she can clearly feel the temperature of the woman's palm.

Cold to the bone.

That hand gently strokes her cheek and tenderly asks, "Lulu, would you like to stay with me forever?"

Su Lu can't remember whether she answered. She only remembers her consciousness slowly growing hazy. In her daze, she hears a cool, clear voice: "Stay in the dream with me, forever."

Su Lu seems to sleep for a very long time, long enough to live through a century of reincarnations in her dream, long enough that she doesn't want to wake up.

But in the end, Su Lu wakes. Sitting beside her is Su Yi, who left her ten years ago.

At last, she is living with her older sister again. Just like before, Su Yi treats her even better than she used to, but somehow, things also feel different.

Then, on Su Lu's birthday, among the gifts she receives is a letter. When she opens it, there's only one sheet of paper inside: Su Yi's death certificate.

"Su Yi" gently embraces her from behind and softly asks, "Did you have a nice day?"

Su Lu's heart tightens, but she calmly hides the paper. Smiling, she says, "I did. As long as I'm with you, I'm happy."

*Features high heels and reduplicated names. If that's not your thing, don't click.

Theme: Don't let go so easily