S1·E10 Innocence! Love! My First Kiss?!

Another Aragami is again terrorizing Tokyo, and this time it's a fire-breathing frog who has his eyes on the subway system. When Momiji confronts the Aragami, she meets Muramuko, an evil man who almost brings her life to an end.

Kusanagi arrives just in time to give her mouth-to-mouth, or what she considers 'a kiss', and faces off with Muramuko.