Nii Yugito’s elder sister:- Nii Yutsura = Tsuyuri's mother

Yutsura's mother is Mikazuki Nae. Her father, Nii Toruma. Yutsura is 7 years elder than Yugito. She was actually the one who was implanted with the Nibi at the age of 2. But she eloped with an Uchiha around the Kiri village at the age of 18 (Yugito 11). She was already considered an outlaw since she eloped and got away with the Nibi. She delivered Tsuyuri at age 20 (Yugito 13) but her husband disappeared at that time. He never came back. So, she took care of Tsuyuri until age 5 but there were people who were going to get her and she realized that she can’t defeat them. So, she chased her daughter away from the danger and was captured back to Kumogakure. This is where the Nibi was extracted from her and transfered to Yugito (aged 18).

Yutsura's tragic death was not known to Yugito. She was told that her sister came back and offered to return the Nibi as she was already close to death’s door because of an uncurable disease. It was because of that lie, Yugito took Nibi upon her in her sister’s name and for the village. Compared to Yutsura, Yugito mastered the Nibi 100 times better. The Mikazuki blood that ran in her veins has a lot more power than Yutsura did. Her ability to control Nibi in such a rapid pace caused every outsider to mistaken her as her sister who had that demon sealed in her at the age of 2.