Araragi Koyomi is the main protagonist of the Monogatari series, a popular Japanese light novel and anime franchise created by Nisio Isin. He is a high school student who becomes involved with various oddities and supernatural beings, often helping those affected by them. His character is known for his witty dialogue and introspective nature. Koyomi possesses the ability to recover from serious injuries due to a past encounter with a vampire, Shinobu Oshino. Throughout the series, he navigates complex relationships with other characters, including Hitagi Senjougahara and Mayoi Hachikuji, while confronting various challenges related to the supernatural world.