The results of his "checkup" came back, and Akaseki discovered that his Yin Style had indeed progressed!
It had just reached 1%...
And this time, Akaseki had keenly sensed the instant his Yin Style changed. Even without replaying it, he knew which emotion had stimulated the change in his Yin Release Chakra...
It was clearly that final moment... when "Hong Yan" grew angry at his family's unreasonable behavior and wanted someone to punish them!
"Anger? Definitely not... Thinking back to Yang Style... at the time, I thought it was... compassion?" Akaseki recalled the two emotions.
Although Akaseki had yet to settle on an answer, he vaguely sensed that the emotions needed for Yin Style and Yang Style—two chakra transformations that seemed opposed but actually complemented one another—should also correspond to each other. They gave him the same sense of being "both opposed and unified."
"I get it!"
Akaseki's eyes lit up. Clearly, something had occurred to him.
"The emotion that stimulates Yang Style is empathy for the misfortune of people unrelated to me. I must have seen that saying somewhere. It was... right, [Do not do to others what you would not want done to you]!" Akaseki felt that described it perfectly.
In other words...
"Benevolence! I'll call the emotion that corresponds to Yang Style 'benevolence'!" This was an interpretation Akaseki had learned through immersion.
"As for Yin Style, it's the exact opposite: hating other people or things for the sake of someone unrelated to me. It's fundamentally similar to 'benevolence,' but manifests in the opposite way... Then I'll call it 'righteousness'!"
Akaseki now understood how to stimulate Yang Style and Yin Style transformations—one was Benevolence Style, the other Righteousness Style.
"Emotions like these are actually very common. Ninja... no, all humans have them. But... they only triggered chakra transformations