Shinkagan

The Kaikugan (かいく, Literally meaning: Evolution Eye) is the Dōjutsu Kekkei Mora of Kiyomi Hyūga; it was born from her the natural evolution fusion of her two Byakugan|Bloodline Sharingan|inheritance. It had evolved once more after she Mangekyō Sharingan|murdered her Seika Uchiha|father and gained her Six Paths Yin Power (Cam)|half of his will. And in received said promised power as the current incarnation of she was able to reach the pinnacle of all Rinnegan|dōjutsu prowess. As it encompasses the power all of three dōjutsu, it is highly plausible for the Kaikugan to be strong than or at least on par with the Rinne Sharingan