I Open Mystery Boxes in the One Piece World

Xiao Muchen, a modern-day office drone, unexpectedly transmigrates to the perilous world of the Pirate King, starting out on a remote island in the East Blue. Fortunately, he awakens the "Everything Mystery Box System." In his eyes, anything in the world, whether stone, wood, weapons carried by enemies, or even a Devil Fruit, can become a mystery box waiting to be opened. Opening boxes can reward him with all sorts of strange items and skills, and even inheritances from other worlds. With this quirky yet powerful ability, Xiao Muchen decides to start with a modest goal: how about opening a Four Emperors as a mystery box? This is the adventure of an ordinary man who rises step by step to the pinnacle of the world by opening mystery boxes.