Rasetsu Ōtsutsuki

Rasetsu Ōtsutsuki(大筒木羅刹, Ootsutsuki Rasetsu), also known as the Dai Bannō Hakaisha(大万能破壊者, Lit. "Great Omnipotent Destructor") is one of the last living pureblood members of the esteemed and famed Ōtsutsuki Tribe, holding eminence as the reincarnation of Tarine Ōtsutsuki. Reputed as having descended from Princess Kaguya, he seems to take after the latter far more than most members of his bloodline, whom express great kinship or some form of semblance towards Hagoromo Ōtsutsuki or one of his two sons. Due to his ocular prowess with his proclaimed Shingan, his unique dōjutsu, as well as his absurd, mythic, and demonic strength on the battlefield, Rasetsu's has earned himself the infamous moniker of none other than Demon-Eyes Rasetsu(鬼目羅刹, Oni me Rasetsu), a title which he is both feared and revered underneath by both enemy and ally alike.

Shingan
The Shingan is the name of Rasetsu's unique Dōjutsu. It seems to be a unique Kekkei Genkai the likes of which is native solely to his usage, bearing the exact appearance of The Legendary Shinju's Eye, composed of a series of rings surrounding the iris, lined with small tomoe. Rasetsu's Shingan, its extraordinary powers, as well as his innate mastery of them, is the origin of his notorious "Demon-Eyes" designation, hence the fact the ocular prowess he wields are depicted as perfect replica's of the eyes of The Shinju. Rasetsu himself has outwardly expressed an extensive comprehension of the Shingan, and thus, has obtained access to an extremely wide variety of different mystical powers and techniques which it has to offer. Immediate examples include the exploitation of skills rooted in all three more commonplace legendary dōjutsu, such as his capacity to employ the black flames of amaterasu, rooted in The mangekyō sharingan, and the six paths technique which stems from the rinnegan of legend.