The akebi is the purple fruit of a wild akebia vine that grows on Honshu and Kyushu. It feels soft to the touch. It’s shape is roughly that of what you’d get if you tried to smush an apple into a banana-shape but gave up about halfway. The part you want to eat is the sweet whitish inside, although that the purple skin and black seeds are also edible. For many Japanese, the appearance of the akebi fruit is a symbol that Autumn has finally arrived.