The episode focuses on the aftermath of a series of murders within the Kannagi family. Suspicion initially falls on Kazuma, but the true culprit is revealed to be related to a much darker plot involving a forbidden contract.

When viewing this episode in an MKV format with a runtime of 24:40, the structure typically breaks down as follows: Opening Theme ("stigma" by Ami Fujita).

Misao Oogami, a relative of the Kannagi family, is discovered to be responsible for the recent attacks.

"Kaze no Stigma" (Stigma of the Wind) is a Japanese light novel and anime series about Kazuma Kannagi, a member of the Kannagi family who is exiled for his lack of fire magic, but returns years later as a powerful master of wind magic (Fuujutsu).

Kazuma is forced to intervene when Misao’s powers go out of control, threatening the entire Kannagi household.

Post-credits scene and preview for Episode 5.

Ending Theme ("Hoshizora no Spica" by Nana Mizuki).