Eddy Lim has one unusual habit: he cannot stop asking “What if?” At his international school in Penang, his endless questions often drive his friends and teachers slightly crazy—until one rainy afternoon he discovers an old metal box hidden beneath the school’s ancient rain tree. Inside are mysterious clues pointing toward a forgotten student club called the Question Club. With his best friend Hyuga beside him, Eddy follows the trail through the school library, an abandoned storage room, and a rooftop garden, slowly uncovering a lesson that changes the way he sees curiosity, friendship, and the world around him. But just when Eddy thinks the mystery is solved, he notices one final clue in an old photograph—leading him to wonder about a missing notebook and an entirely new adventure.