In the remote village of Cronston, Jean, an ordinary resident, discover One day a strange well in the heart of the forest, after being attracted by a gigantic bolete. Very quickly, this well proves capable of predicting the future with disturbing precision. The inhabitants run to know their destiny, until the day when the well mysteriously falls silent. Determined to unravel the mystery, Jean descends into the depths of the well and finds himself transported into a parallel world, where a huge glowing tree produces the pink acorns that fueled the prophecies. But faced with this new universe, Jean must make a choice: bring back the acorns to save the village or explore the true nature of time and the future. Mystery, adventure and a crucial choice await him. What will he decide, and at what cost?