Where did this picture come from? Plus points!

Kill La ·kill(キルラキル) is a passionate fantasy original TV animation created by Ichiki Nakajima and directed by Hiroshi Hiroshi. The official slogan is "dress, chop, starve, ghost, survive, and finally cut the world!" . The animation takes the instinctive character college dominated by force and terror as the stage, and tells the story that Matoi Ryuuko, a young girl, came to the instinctive character college as a transfer student in order to find her father's enemy, and waged a life-and-death struggle with Ghost Dragon College, the president of the student union who mainly controlled the important power of the college, and the four kings of the student union.