|Japanese title meaning||Don't blame depending on a feeling|
|Original airdate||November 7, 2013|
|English airdate||March 14, 2015|
|Episode director||Daizen Komatsuda|
|Animation director||Masaru Sakamoto|
|Opening theme||"Sirius" by Aoi Eir|
|Insert themes||"Before my body is dry" by Mika Kobayashi|
|Ending theme||"Gomen ne, Iiko ja Irarenai." by Miku Sawai|
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"Don't Toy With Me on a Whim" is the 6th episode of Kill la Kill.
After learning of his connection with Tsumugu Kinagase, Ryūko Matoi tries to press Aikurō Mikisugi for more information, but does not get much outside of his organization's name, Nudist Beach. Meanwhile, another of the Elite Four, Uzu Sanageyama, gets permission from Satsuki Kiryūin to fight against Ryūko himself, flashing back to the day Satsuki recruited Uzu into her ranks. A young Satsuki defeated almost the entirety of the Northern Kantō Gang Leader Alliance that stood against her with just a single move, leaving only Uzu standing. He attempted to get behind her but she defeated him with a single backward thrust from her sword. She offered the defeated Uzu a place at Honnōji Academy and he accepted. After receiving permission to challenge Ryūko, Uzu heads out and Satsuki receives a phone call from her mother, who wishes to know why she had taken Junketsu. To explain her actions, Satsuki goes to meet up with her mother but by doing so, forbear her from seeing Uzu and Ryūko's fight the next day. She leaves a message that she wouldn't need to see the battle to know it's outcome.
The next day, Uzu challenges Ryūko, facing against her in his Three-Star Goku Uniform, Blade Regalia. He has the advantage due to his fast eyesight reading all of Ryūko's moves, but Ryūko overcomes this by using a part of her uniform to block Uzu's vision, allowing her to defeat him and destroy his uniform. Not wanting to give up, Uzu undergoes a drastic operation to sew his eyes shut and asks the newly returned Satsuki for another chance, seeing his resolve she acquiesces. Uzu challenges Ryūko again with a new version of his uniform, this time using his other senses to predict her moves and completely overwhelm her. However, before Uzu can deliver the final blow, his Goku Uniform overheats due to him being more powerful than it can handle, giving Ryūko the opportunity to escape.
- “But that's really our name...”—Aikuro when Ryuko disbelieves his organization's name.
- “I was called out by one of the Elite Four. That's an invitation I can't refuse.”—Ryuko facing Uzu.