My Affair With a Ghostly Girlfriend

On a feverish dark night, a black wind swooped down under the pale glow of the dark as Ye Lan, a high school student, gained unimaginable and mysterious powers. Was it a strangely beautiful demon Lolita, an arrogant elder sister, or an innocent, adorable and beautiful sword deity that appeared before him?

Ye Lan couldn't find it in him...