All 12 episodes of the Japanese anime based on the light novel series by Nisio Isin. Part of the 'Monogatari' series, the show follows Koyomi Araragi (voice of Hiroshi Kamiya) as he investigates 12 mysteries over the course of a year. The episodes are: 'Koyomi Stone', 'Koyomi Flower', 'Koyomi Sand', 'Koyomi Water', 'Koyomi Wind', 'Koyomi Tree', 'Koyomi Tea', 'Koyomi Mountain', 'Koyomi Torus', 'Koyomi Seed', 'Koyomi Nothing' and 'Koyomi Dead'.