Nightmare Fuel: Watching Gisen scream in pain and agony after she literally dissolves after being sent up in the atmosphere is a little unsettling.
Tear Jerker: Episode twelve. Moe!Jubei disappears as a result of Muneakira kissing her, making Badass!Jubei her only personality. But then it turns out she's still there, and she combines with Badass!Jubei to form "Jubei Two." Yay! But then both Jubeis pull a Heroic Sacrifice. They seem to accept their fate in the end, but it's still sad. In the DVD/BD version, she comes back.
Unpopular Popular Character: Naoe Kanetsugu can't win the respect of anyone in the show, often being ignored, beaten up, or both. In a poll taken before the anime began, she was the winner, and when the show aired, she earned the love of the fanbase for her delusional persistence.