Geez! Oh, Man! Sakura's Not Good Enough?! - S1.E18

When Susana-O's power disturbs Nozuchi, a powerful Aragami, Sakura's past is dug up, revealing that Nozuchi killed her mother long ago. Momiji Fujiyama, along with the help of the TAC, come to the aid of Sakura, but are helpless to prevent Nozuchi from swallowing Sakura. Inside the stomach of the monster, Sakura makes a horrifying discovery -- her mother is still alive.