Watashi, Seitarou Higuchi, Akashi, Ozu, and Ryouko Hanuki share various stories about a submarine that can travel through land, each one trying to outdo the others in terms of creativity. Ranging from a journey to stop the melting of the ice caps, to a quest to stop perverts from spying on girls, and to a fishing trip, no topic is off-limits. [Written by MAL Rewrite]

A slapstick comedy going back to the basic, "laughable" style of the TV series. One day, the Nohara family was looking forward to having an ultra-rich yakiniku dinner, but they were put on the Wanted List on suspicion of heinous crimes because of a scheme of a mysterious organization named Sweet Boys. The Nohara family must run from Sweet Boys' pursuit but to eat yakiniku for dinner they need to stop escaping and decide to meet the boss of Sweet Boys, who is based in Atami (a hot spring/resort city in Shizuoka Prefecture). (Source: Manabu Tsuribe)

Mitsuo encountered Superman, an alien who is a part of a federation that tries to maintain peace in the galaxy. He then received a helmet (that also serves as a mask) that gives superhuman strength, a cape that enables the wearer to fly, and a badge that allows him to breathe underwater and communicate with his fellow comrades whom he met soon after he utilized these gifts. Superman made it clear to all Permans that their identity must be kept a secret or their brain will be destroyed should it ever be revealed and they are given a special doppelganger robot that can replace them while they are away to achieve this feat, although it is not entirely foolproof nor is it free from potential problems. These equipments then allowed them to be young Permans who try to maintain peace and help the people who are in need. (Source: ANN)

To reach the stage of "FES.", Yukina Minato decides to form a band. Each holding their own convictions, the members of the band come together. The five girls now begin their journey to the top as Roselia... This is the story of their "promise" made to each other, from the start of the band to their challenge towards FUTURE WORLD FES!