On this matter, Shinji didn't keep repeating himself to Yakumo.
He had already warned her. If Yakumo didn't want to, or couldn't, keep Ido in check, he wouldn't show any mercy. He would eliminate Ido at the first opportunity and take back the Red Dragon Eye.
He needed a capable subordinate, not a liability!
"Get used to the Red Dragon Eye first. I'll arrange the follow-up surgery based on your condition."
After giving his instructions, Shinji flashed out of sight.
Once their leader had left, Yakumo slowly got to her feet. Wiping the cold sweat from her forehead, she demanded of Ido, "Why didn't you listen?"
Ido had no answer.
She hadn't meant to defy their leader. She had simply just gained tremendous power and, in her unsettled state, gotten a little carried away.
Now, she was terrified too.
Unlike Yakumo, she was a Spirit Body. She could sense killing intent far more keenly, and she knew that, for one brief moment, their leader had been intent on killing her!
That was why she had been trembling all along!
Yakumo continued, "The leader gave us these eyes, and the leader gave us our future, too. If you ever intend to defy him, then I'll have no choice but to—"
"Don't say it!" Ido interrupted Yakumo, forcing an awkward smile. "I'm not stupid enough to pick a fight with a monster like that!"
With that, Ido returned to Yakumo's inner world.
"Ugh!"
Yakumo sighed.
She silently resolved to find a way to control Ido. She couldn't let her keep acting so recklessly.
Outside the Kurama Clan's grounds.
Shinji leaped into a tree and glanced back at the Kurama Clan's Main Family estate.
Ido's untamable wildness gave him pause. He wasn't sure whether he should proceed with the White Zetsu Cells transplant