In Naruto as Ten Tail

Tsukimi knew the nature of kids in the academy and they always tried to pick on something or someone they didn't like. Sooner or later it would be Kushina's turn.
Mito understood the meaning of his words and nodded.
"Don't worry about that, I will be personally training her."
Hearing that declaration not only Tsunade but Kushina was also surprised. Nawaki looked at his grandmother with complicated emotions and then turned to look at the girl with slight envy.
During these months he had tried to make his grandmother teach him but she always refused but now she is agreeing to teach a new girl who just came.
Mita easily felt those changes in Nawaki with her mind eye kagura and sighed.
"You too Nawaki. I will be teaching you as well so be sure to be prepared for gruesome training." Hearing those words Nawaki did not back down but instead he smiled wildly and nodded.
"I am ready to train to death, grandmother-"
*Boom*
Tsunade slammed her fist in Nawaki's stomach, sending him flying back into the wall. Mito also smiled sweetly in his direction without having any intentions of stopping Tsunade.

"It seems my little brother is eager to train, let me train you." She dragged Nawaki with his leg out of the room towards the training room.
She did not even care about the fact that Nawaki was bleeding from his mouth.
Tsukimi promptly ignored the whole scene as if nothing happened.
The next day just as Tsukimi predicted happened, as soon as Kushina was introduced to the class everyone started speaking bad about her red hair.
Tsukimi noticed that the ones who were mostly saying those things were all children of civilians.
Some of the noble family kids being children joined in on the fun to bully others but most of them stayed quiet.
Tsukimi did not interfere at first. He wanted Kushina to understand these people first before making a move.
But he forgot that Minato was different from him and he did exactly what he did in the anime.
He got up and interrupted the introduction while claiming that he will hokage as well. Tsukimi rolled his eyes when he felt someone's gaze lingering in the air.
He could tell that Hiruzen wanted to see the scene of Kushina's introduction just like he kept an eye on him during his first day at the academy.
Now that Minato declared his intentions of becoming Hokage along with his performance in the academy, he knew it won't be long before Hiruzen would start to nurture.
The days returned to normal but Tsukimi decided to not delay things any longer.
Standing under the moonlight on the Hokage monument, Tsukimi looked at the beautiful moon.
More precisely his eyes landed on the huge palace on the moon.
'If I cannot Kill Jigen right now, There are other Otsutsukis I can use.'
Tsukimi first did not go after Toneri because he was too weak to nurture his soul but he decided to use his soul for something else.
His figure suddenly disappeared from the stone statue and appeared in a majestic room that was glowing in cool yet dim lights.
He looked around and his eyes landed on the shocked middle aged Otsutsuki on the throne. He was trying to keep a straight face but failed to do so.
'I did not even sense any fluctuations in space.' he trembled a little as he gazed upon the being in front of him with his Byakugan eyes. 'What is this feeling of oppression?'
He was the current leader of the branch Otsutsuki clan, the descendant of Hamura Otsutsuki. When Hamura was finished sealing his mother along with his mother he decided to create a branch family for the Otsutsuki clan on the moon.
Hamura died due to old age leaving a Tenseigan vessel which was intended to guard the earth. It was being nurtured by the Byakugan of the Family members there.
As the time passed by, his descendants misinterpreted his words thinking he wanted to destroy the Earth to punish humans for the misuse of chakra.
"So Hamura is already dead." Tsukimi's emotionless words echoed in the hall. As soon as he arrived in the room , Tsukimi scanned the whole moon.
He could already sense all the members of the clan on the moon, he was Quite surprised by how low their numbers were.
"Who are you? How dare you barge into Otsutsuki clan territory." Tsukimi finally turned his attention towards the middle aged man who had similar characteristics of the Otsutsuki family.
He raised his eyebrows thinking, where did the old man suddenly get his courage from. Scanning the moon one more time he found a strange device placed on the moon, he could see several lower members of the family were nourishing the device with their Byakugan.
It was the Energy vessel!!