The Sharingan ninja star is a powerful and rare type of Sharingan which is the same as the tessenjo’s, It is said to grant its wielder with supernatural powers.
Rinnegan and Hyuga clan members have this type of sharedn.
It’s not in Naruto, it’s in the Sailor Moon anime.
The Anti-Sailor Scouts are all members of Tsukino family that had obtained the power of a Star Knight from Queen Serenity eons ago.
The Sharingan with the star shape is called Susanoo.
When activated, it will form three hand seals and a ball of chakra in front of them to emit a killing intent.
Once they use this technique, their eye emits an ominous sound similar to echoes and has a special pattern that resembles three concentric circles within its iris which function as targets to lock on and potentially kill multiple enemies at once.
When used by the remnants of Uchiha Madara, the design within his Sharingan’s pupil widens into an oval shape prior to forming the aforementioned pattern; this suggests that each target may be selected through means other than locking onto them, as he does not possess enough time before his final battle against Naruto…
The Sharingan of Kakashi’s old classmate, Rin — a student of the prestigious Uchiha clan.
In junior high school, this prodigy from the Uchiha clan had a genius level IQ and an expert level control and release for her nature transformation.
It was like she was already growing into greatness as the next generation prodigy that would only grow brighter with time.
Even amongst her future classmates and peers in senior high school, she was seen as someone special…
But it all happened so suddenly; there were a few unexplained explosions that resulted in hundreds of casualties.
She’s been missing since then — but not really lost to us.