If the Kekkei Mōra, which exhausted every mystery of Chakra, was called Taiji, then Yin-Yang Release, which gave rise to all things, naturally occupied the position of yin and yang within Taiji's Yin-Yang.
The Four Symbols had the Four Symbols Seal, a masterpiece of the Uzumaki Clan's Fuinjutsu, later refined and improved by the Fourth Hokage into the Eight Trigrams Seal—
There was also the Hyuga Clan's Gentle Fist, the Eight Trigrams Palms—
A ninja's Chakra could also be divided according to the five elements—
It could be said that the Taiji Yin-Yang, Five Elements, Eight Trigrams, and all the various elements and concepts Wu Yu had once known so well were scattered throughout every corner of the ninja system.
But even so—
When Wu Yu saw an alchemy furnace with an incredibly conspicuous Taiji Yin-Yang symbol printed on its front in the underground chamber of this mysterious seal hidden beneath Uzushio Village, the surprise in his heart was beyond words.
Other than a large Uzumaki Clan crest, the walls bore no decorations at all.
This ancient-looking alchemy furnace stood quietly beneath the clan crest.
"What's wrong?" Karin felt that Wu Yu's reaction was a little strange. "It's just an iron furnace. Though if it's supposed to be an incense burner, it's way too huge. It looks really heavy—"
She circled the Taiji furnace, touching it here—bang bang—and knocking on it there—dong dong—but she could not sense anything unusual.
The top seemed to be a lid. Curious, Karin lifted it. It was somewhat heavy, but not enough to trouble a ninja like her. With a little effort, she lifted it off and propped it at an angle against the wall, only to discover in surprise that there was no strange odor inside.
"There seems to be a little Chakra in