Asako Oyo was born in the late tenth century, and was something of a very unique enigma, even among the especially enigmatic Asako Henshin. He managed to teach himself the Path of Man, even continuing in his advancements after being cut off from new learning by his sensei. Oyo strayed into a powerful but corrupted path that took control over his life for more than a hundred years. With the new developments among the Henshin, Oyo had finally been placed back on the true Path. He lived in seclusion in the Asako family lands, peacefully biding his time.