Sutā Clan

"No shinobi can stop us from freezing them to death."

Background
It was originally members of the Yuki Clan that had survived over time, and went from village to village, and eventually after the Fourth Great Shinobi World War, they finally moved and settled in konoha, which there they helped the clan greatly during naruto's era, and were famous for rivaling the Hyuga Clan and being very fierce in their battles, sometimes torturing their opponents. They excelled in swordsmanship, and were called "The Demons of Konohagakure", just because of how strong they were. Eventually, when Tenshi Sutā was born and became a shinobi, they clan got even more famous for her excelling grades, despite the fact she did not care about being a shinobi until the clan went bankrupt and owed a lord of crime a lot of money. Tenshi's best friend sacrificed himself, just for the clan to live, just because he loved her. 4 years later, Tenshi became the strongest ninja of the clan, but was impossible to become the heir, due to her gender. After having this spot for 2 years, she successfully defected from the clan, because she thought she would eventually bring the clan to it's downfall; had she remained a member of the clan. They are still living in konoha, but they are not as reckless anymore, and mostly stay low.