Mikaela Hyakuya is a central character in the anime series Owari no Seraph. Once a human, Mikaela was turned into a vampire by Krul Tepes after a tragic incident that left him mortally wounded. Despite his transformation, Mikaela retains a strong connection to his human past, particularly his bond with Yuichiro Hyakuya, his childhood friend and surrogate brother. Driven by his desire to protect Yuichiro, Mikaela struggles with his dual nature, often caught between his vampire instincts and his lingering humanity. His character embodies themes of loyalty, identity, and the battle between personal desires and overarching destinies.