There is a small village deep in the mountains. Kousuke is a university student and visits the village, his mother's hometown, every summer.
The story starts when his aunt tells him about a part-time job. With his childhood and new friends, he enjoys his life there...
However, an accident destroys their peaceful life. There is a local legend about a monster and a celestial nymph... Who are they...? What will happen to them...?
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