Hiruko (missing-nin)

Hiruko was a white-haired man with red eyes dressed in an over-sized, high-collared coat wrapped with three leather straps. During his childhood, he wore a white robe and his hair was shoulder-length, and tied in a ponytail. As of the Third Shinobi World War, he was seen wearing a beige robe with red undergarments, and his hair's length had reached his hips. By the time he declared a Fourth Shinobi World War against the world, he took on a youthful appearance, despite being actually closer in age to the Sannin, due to the modifications he made on himself. Most of his body was covered in bandages, including his mouth and arms, revealing only the upper half of his face and hair. By taking some of his bandages off he can use them to attack. Due to the many body modifications made for his Chimera Technique, Hiruko had a stitched scar on the left side of his chest, which is hollowed out in order to make room for assimilating Kakashi into his own body; he also had a heavily emaciated look, the whites of his eyes inverted, and his stitch-patterned mouth looks like those found on rag dolls.

A contemporary and former friend of the Sannin, Hiruko wished to become a strong shinobi, yet was born with no natural special abilities. To overcome this disadvantage, he developed the Chimera Technique, a kinjutsu which would allow him to obtain the kekkei genkai of other ninja by fusing their bodies with his own. Some time after the Third Shinobi World War, Hiruko's research and findings on the technique were discovered. He claimed the Third Hokage ordered the Sannin to assassinate him, forcing him to leave the village as a missing-nin.