Bakemonogatari GN Vol 09 (C: 0-1-0)
Relisted
One day, high-school student Koyomi Araragi catches a girl named Hitagi Senjougahara when she trips. But-much to his surprise-she doesn't weigh anything. At all. She says an encounter with a so-called 'crab' took away all her weight… Monsters have been here since the beginning. Always. Everywhere.