Owarimonogatari Second Season

Following an encounter with Izuko Gaen, Koyomi Araragi wakes up in the underworld only to be greeted by Mayoi Hachikuji. Seeking a way back to the living world, he must untangle the ultimate mysteries surrounding the bizarre Ougi Oshino and the ever-expanding Darkness. As his high school graduation approaches, Araragi faces his greatest trial yet, bringing his long and supernatural youth to its definitive climax.