Crab, snail, monkey, snake and cat... Supernatural incidents revolving around five girls were solved thanks to Koyomi Araragi. With these mysteries solved, Koyomi Araragi can begin to carry a normal life, or at least it seems... His "unusual" life starts when Koyomi wakes up in a ruined school building, captured and chained by Hitagi Senjyogahara. She says, "I will protect you, Araragi." Exactly what is Senjyogahara up to?! With Koyomi's two younger sisters Karen and Tsukihi (a.k.a the Fire Sisters) now involved, Koyomi once again finds himself tangled with apparitions!