Shinobi World No. 1.
Konoha Year 47, spring.
Land of Rain, Jashin Cult Headquarters, Side Hall.
Dark red light slowly swirled through the Side Hall. Nagato sat cross-legged on a stone platform. His Mangekyō Sharingan had faded, but a trace of contemplation still lingered between his brows. He held the book "Yin Release Three Colors: From Awakening to Cultivation," open to the page on "Color of the Supreme King: Mid-Level," but he had been staring at the same passage for a long time.
Yahiko stood by the window with his arms folded, his short orange hair especially striking in the dim light.
His brows were slightly furrowed as well. Konan sat by the window, folding a paper crane, but stopped with its wings only half-folded.
From time to time, all three glanced toward the tightly shut door deep within the Side Hall.
Their teacher was in seclusion. After returning from Sunagakure, Toyotomi Yinglang had entered the Quiet Chamber in the deepest part of the Side Hall and ordered everyone not to disturb him. Three days had passed. Nagato knew their teacher was cultivating, but he did not know what he was cultivating. The three colors of Yin Release? Their teacher's Color of Observation, Color of Armament, and Color of the Supreme King had reached an extremely high level long before he began teaching them. What else required three days of seclusion to break through?
"Nagato," Yahiko said, keeping his voice very low, "just what level are Teacher's three colors of Yin Release?"
Nagato fell silent for a moment. "I don't know. Teacher has never said. But... at least high-level. Teacher used the Color of Observation's Future Sight when fighting the Three Great Apostles. He also demonstrated the Color of Armament's Flowing Sakura and armor break. And he used the Color