​In the mystical city of Rhystheld, 17-year-old Orion and his friends, Lyra and Rikko, embark on a seemingly simple search for the rare bensote-homozyten (grey clover) for their university project. Their hunt leads them into the glowing forest outside the city.​Upon finding the clovers and returning to their university dorm, the rare plants mysteriously turn ryphanite red. Orion is immediately struck by two powerful visions: first, of a cloaked figure standing before an open rift in a mushroom-covered library; and second, of the same figure suspended in a shadowy cavern.​Following a massive, mysterious crash, the trio discovers a colossal, pyramid-headed creature, the Kryxos-Rhyme, being violently controlled by red vines identical to those in Orion's vision. When the creature stops near the city towers, the cloaked figure strides forth from a newly opened dimensional rift.​The figure, revealed to be Sílkho (Sílk), lifts the trio off the ground and forces the red clover from Lyra's pocket. He then drops a devastating truth on Orion: he is Orion's brother, and Orion is not from Rhystheld, but from the Reflected Dimension. Sílk warns them that a dangerous group of Hunters is pursuing them and that they must leave their world immediately to survive.