My beloved girlfriend, Yukina, died.

I — Shibuya Sota — lost the will to live. One day, my deceased girlfriend started appearing in my dreams. In my dreams, seeing her encourage me, I was supposed to gradually regain my normal life… or so I thought. Somehow, I feel like 'someone' is always close to me. No, no, it's just my imagination, right?

"Ugh, Yukina-chan is possessing Sota-kun!?"

"Whoa, Sota's being possessed by his girlfriend!"

"Hmm, Sou-chan just won't notice me."

Only I haven't noticed her (the ghost)!? That's the story.