Haneul High School was your usual high school located at the heart of Seoul. Students with average to high score went there every day to study; not knowing that they weren’t alone. There were students and teachers there like the usual school.

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And there were ghosts.

The ghosts attended night school like normal living students would, but there were no rules, no homework, no need to study, and no subjects at all. Only fun all night.

There was only one thing the night school students must remember.

That human and ghosts should be separated.

And they were forbidden to let the human students know about their presence.

Once upon a time, Haneul High School stood as the   house for human and ghosts, living peacefully together without knowing of each other.

Or so was the original plan.

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