Hyuga Rinka had told Uchiha Yi before that the Hyuga Clan possessed a Forbidden Technique similar to the Tenseigan. The only catch was that using it cost lives.
In truth, the Main Family back then had earned the right to lead the Branch Family. After all, its members really had been willing to risk their lives to protect the clan!
But after Konoha was founded, things changed for the Hyuga Clan. The clan and its Byakugan held unique strategic value for Konoha.
The Sharingan was powerful, but the Byakugan was even more useful tactically. It could also dispel Genjutsu, so in a sense, it countered the Sharingan to some degree.
Shimura Danzō had tried to control someone with Kotoamatsukami, only for the Byakugan to expose him.
Obito Uchiha had used Genjutsu to control the Fourth Mizukage, and the Byakugan had exposed that too.
The Hyuga Clan's Byakugan had indeed weakened considerably compared to that of the Ōtsutsuki Clan, but a pure Byakugan still had impressive abilities.
By now, most members of the Hyuga Main Family no longer regarded the Branch Family as kin. They treated its members as servants and slaves, while the Caged Bird Seal had gone from a means of protecting clan members to a means of controlling the Branch Family.
As for the Main Family, its members rarely took the battlefield, even in wartime. During the Second Shinobi World War, Hyuga Rinka had been the only one to follow Uchiha Yi into battle.
That had only happened because Uchiha Yi was strong enough to protect her, and because Hyuga Rinka herself was so resolute.
Her strength was beyond doubt. Few people in the Shinobi World could still stand against her.
She had even begun to surpass Uchiha Mikoto and Kushina Uzumaki.
Hyuga Rinka was now strong enough