Up for an inkcredible Hero Stage Show?
Ika-Musume and Takeru watch a live stage show on the beach as the hero Noh Kamen fights a giant squid beast. However, the squid girl starts cheering on the villain of the show, accidentally turning the crowd of children to the bad guy's side. The actors take a break and try to figure out a way to salvage the show, when Ika-Musume steals the squid costume and becomes the villain herself. However, Chizuru later shows up as Noh Kamen's sidekick and uses her unexplained martial arts powers to subdue Ika-Musume before she can do any harm.
Squidn't you be studying right now?
Ika-Musume finally feels superior having mastered some high-school math problems in a snap that Eiko is having problems solving. However, her plan to conquer the world using her math prowess hits a snag when she finds out that the people she tries to impress either don't understand it or don't care about it.
Is this inkfatuation or love?
Nagisa wipes out while surfing on a big wave, and is saved by Goro. While Nagisa tries to get noticed by him, Ika-Musume feels jealous that Nagisa isn't worrying about her as much. Eiko notes later that this sets off an odd love triangle where Goro likes Chizuru, Nagisa likes Goro, and Ika (in a way) likes Nagisa. Then Sanae only complicates things with her own weird infatuation with the squid girl.