When did Kagura wear the angel outfit in GinTama?

Kagura wears the angel outfit in the "Gintama" anime during the "Shinsengumi Crisis" arc, specifically in episode 266, titled "The Shinsengumi's Crisis." In this episode, she dons the outfit as part of a comedic scene. The outfit adds to the humorous contrast of her character, as Kagura is known for her fierce personality.