After Marin Kitagawa introduced Wakana Gojou to the world of cosplay, he has been creating her outfits with ease. Even so, he still has a lot to learn, and every new lesson seems to strengthen his love for sewing and for the hina dolls his grandfather taught him to make. Meanwhile, Kitagawa finds it harder and harder to hide her feelings for Gojou. Friends and strangers alike constantly mistake them for a couple, much to Gojou's embarrassment. After all, in his eyes, their worlds are far too different for anyone to think they could be romantically linked. However, as Gojou spends more time with Kitagawa and realizes that his passions are not ridiculed by other people, a relationship between the two no longer seems so far-fetched.

Mayuri Shiina brings a cognitive computing system—with a large pink Oopa toy serving as its terminal—to the Future Gadget Lab, insisting that it will help her and Kurisu Makise prepare fried chicken for the group, much to the dismay of Rintarou Okabe and Itaru Daru Hashida. Despite not having the proper ingredients, the Oopa cognitive computer assists Mayuri and Kurisu in perfecting a dish that the other lab members will enjoy. In the following episodes, the cognitive computer continues to aid Okabe and his friends in their day-to-day lives. From helping Okabe and Kurisu to reconcile after an argument, to collecting input from the lab members to suggest improvements for the Lab; Okabe may not realize it yet, but his lab has gained a valuable asset!

As college entrance examinations draw near, two students living completely different lives decide to enroll in Z-Kai, a correspondence education service. Balancing their studies with their daily lives, the two diligently work towards their goal, unaware of how much they share in common. Will their hard work pay off and bring about the success they desire?

Medabots—powerful robots granted artificial intelligence through special medals—serve at the whims of their owner. They are more commonly used in Robbatling, a popular combat sport where two medabots face off against one another. In its professional form, Medafighters use their Medabots to qualify for the World Tournament and fight amongst the elite to gain the title of champion. Elementary schooler Ikki Tenryou has just gained his first Medabot: Metabee, an outdated model with no medal. Fortunately, however, Ikki manages to find a medal in the nearby river; but when Ikki places it into Metabee's head, the latter starts to exhibit strange behaviour. Short-tempered and rebellious, he refuses to obey Ikki's orders. However, to climb the ranks to the World Tournament, Ikki and Metabee must first learn to work together, no matter how difficult the prospect may seem…