A dark blue ancient book was wrapped in a piece of dusty blue sheepskin. It stayed silently in a dark corner for countless lonely years. Now it was accidentally discovered by four girls, and they interpreted it one by one...
And the mysterious traveler in the book leads curious people step by step towards the final, deepest, coldest and most desolate ending! Along with the blue parchment book, a series of strange stories happened between the four girls. They were crazy about love, troubled by love, and troubled by the strange things around them. Things that made them overwhelmed were quietly waiting for them in the distance...