I Returned from the Dead Only to Find You

In ancient China, people believed the dead could return to life.

I never expected that it could happen in the modern era too, and to the female lead, no less.

So, did the female lead come back to life?

But why can't she remember anything after returning?

Is this a test for her?

She sets out to recover her memories.

She discovers that the girl whose body she now inhabits is a student.

There's also a classmate

who keeps appearing beside her out of nowhere,

and the female lead gradually uncovers secrets that were never meant to be known...