Yearning for the Sky’s Blue, Yet Unaware of Its Vastness (Please Vote!!)

"..." Faced with Yun Chuan's gentle question, Shinnō's pupils merely contracted slightly. For a moment, he did not know how to respond. Or rather, he did not know how to describe the... —"monster" standing before him. "Zero-Tail: Void" was not a ninjutsu developed by Shinnō. It was itself a monster that truly existed in the ninja world in a special form. Its core was a power Shinnō had named "Dark Chakra," and Dark Chakra came from the darkness and desires within human hearts.