After spending time with others, and when placed in charge by Mika of watching over the kids alongside him and Akane, he assumed a role of the aloof, yet kindhearted older brother. At first, Yu wanted nothing to do with Mika and the other Hyakuya orphans when invited to be a part of their family having had prior experiences with what family was to him. As a young child, he saw himself as a demon that no one would love, views largely shaped by his parents attempting to murder him. Up until his teenage years, Yu was moody and antisocial due to the tragedies during his childhood. He was willing and able to slice off his own arm. The past Yu had six white feathered seraph wings.
As a full seraph, Yu has a single pair of irregular black wings as a result of Asuramaru trying to prevent the transformations, both of his sclerae are dark with gold irises, and the edges of his hair become white. In his incomplete seraph form, Yu's left eye turns dark and bleeds while a massive wing-like structure sprouts from his upper left shoulder. At its most extreme his hand can briefly appear inhuman. Yu's eyes became scarlet, sprouts two black horns from his head, and his teeth become pointed while curse marks appear on the side of his face. Sometimes he can be seen wearing the JIDA hat, and often wears the JIDA cape as well. Yu keeps his katana on the left side of his hip. He also wears the uniform trousers and black boots which go over the trouser's leggings. Along with that, he wears a pair of white gloves and a white web belt with a gold waist-plate. This consists of a long-sleeved black coat with light green details including the shoulder epaulettes which has a brown Sam Browne belt passing diagonally over his right shoulder and two rows of gold buttons on the front. He wielded a standard demon katana until he was promoted into the Moon Demon Company.Īs a private of the Demon Army, Yu wears the standard JIDA uniform. The collar and the top buttons of the jacket are unbuttoned, revealing is a white shirt underneath. In chapter 2 of Vampire Reign when he is sent to school for his behavior, Yu is shown wearing his school uniform, gakuran with a standing collar that is black with teal trim. As a livestock, he wears the standard white uniform with short sleeves and a hood. His eyes are large compared to most other males. He possesses sharp green eyes which fall under his thick eyebrows. Yūichirō has medium length black hair which can be considered quite neat and messy at the same time. 8.1 Seraph of the End: Guren Ichinose: Catastrophe at Sixteen.Note: This is the page for Yu in the manga and light novels, for the anime article detailing Yu see: Yūichirō Hyakuya (Anime). Unknowingly a part of, and caught up in other's long term plots, Yu would have no memory that a child Yu existed in the ancient world who was involved with the first vampire, who became Shikama Dōji. Yu also appears in prequel materials Seraph of the End: Guren Ichinose: Catastrophe at Sixteen and Seraph of the End: The Story of Vampire Michaela. His swordsmanship would allow him to generate demonic powers to help survive and overcome foes. Pursuing power to help save others, Yu developed a strong sense of looking out for family members. Battling alongside fellow squad members Yoichi Saotome as well as Shihō Kimizuki and Mitsuba Sangū, after vampires launch major assaults on human cities, Yu would come into contact with Mika again.
Trained in part by Guren Ichinose, in combat Yu wields a Cursed Gear sword after making a contract with the demon, Asuramaru. Motivated to enact vengeance against vampires, four years later Yu becomes a member of the Japanese Imperial Demon Army, and joins Shinoa Hīragi's squad in the Moon Demon Company. During an escape from the vampire city they were raised as livestock in, Yu was the only one to escape from a trap by Ferid Bathory that resulted in his orphanage family being killed, where he also had to leave Mika behind. The main protagonist of the Seraph of the End: Vampire Reign manga, Yu along with Mikaela Hyakuya, possesses the " seraph" gene. Vampire Reign chapter 1 Yūichirō Hyakuya ( 百夜 優一郎, Hyakuya Yūichirō ?), birth name Yūichirō Amane ( 天音 優一郎, Amane Yūichirō ?), is a character in Seraph of the End.