Aizawa Ayumu reluctantly returns to his father's home in the quaint town of Tana, lured by the promise of a mountain bike from his mother. As fragments of his enigmatic past in Tana resurface, mysterious elements like glowing lights, strange reflections in animals' eyes, and a peculiar boy named Wakkun clad in Ayumu's childhood attire intertwine with the elusive secrets veiled within the town. Alongside the enigmatic Miku, a curious female announcer, and a forest steeped in history, Ayumu navigates a realm where the ordinary conceals extraordinary riddles, shaping a mesmerizing world in Zettai Shonen.