In 19th century Paris, Claude Claudel and his grandfather Oscar run a metalworking shop tucked away in the Galerie du Roy shopping arcade. Back home from his recent travels, Oscar appears with a young Japanese girl—Yune—by his side. Although he is initially against it, Claude comes to accept Oscar's announcement that Yune will live and work with them going forward. Bewildered by Yune's foreign customs, Claude must balance looking after her and managing the shop. But over time, as she settles into her new role as a live-in maid, Claude slowly shows interest in learning to understand Yune and the vastly different world she comes from.

The fierce confrontation among the Kanto high schools reaches new heights with the awakening of dragons in the Kyousho and Seito Academy's leaders, Moutoku Sousou and Gentoku Ryuubi. However, the power balance between these two institutions and their main opponent, Nanyo Academy, is jeopardized when Shimei Ryomou seizes a mysterious dragon orb in China. It is said that the orb grants its strength to a dragon wielder, and Shimei hopes to save Nanyo Academy's leader Hakufu Sonsaku from the adverse effects of her unstable gift. Meanwhile, Moutoku's powers completely consume him, and he loses control over his own body to the Demon King's soul, whose unlimited ambitions endanger the stability of the region and the safety of his allies. In the face of growing tensions to claim the dragon orb, Hakufu and Gentoku will have to put aside their differences and work together to thwart Moutoku's demonic plans.

There is no such thing as an uneventful day in the life of kindergartener Shinnosuke Shin-chan Nohara. The five-year-old is a cut above the most troublesome, perverted, and shameless kid one can imagine. Shin-chan is almost always engaged in questionable activities such as forgetting about a friend during hide and seek, sumo wrestling for love, performing various gags including the notorious elephant in public, and flirting with college girls. The exemplary troublemaker has done it all and has no plans to stop anytime soon. Crayon Shin-chan follows the daily shenanigans of Shin-chan with his group of friends, parading around as the self-proclaimed Kasukabe Defense Force. The adults witnessing these shenanigans unfold can't help but adore Shin-chan, as he keeps them entertained while unintentionally solving their daily troubles through his mindless antics—leaving himself as the only problem they do not know what to do with.

Demons have now become commonplace around the kingdom of Midland, which has fallen into chaos. The swordsman Guts still cannot stay in one place for long due to his demonic brand. He could always manage to protect himself when he was alone, but now he has the added challenge of protecting former Commander Casca, a shell of her former self who neither remembers nor trusts him. They never have a moment's rest with the constant threat of demons, and they need a place where Casca will be safe till they find a way to heal her. Their elf ally, Puck, tells of the mystical land of Elfhelm, which is supposed to be a safe haven from the demons that ravage the lands. Tired and with only a vague hope, they struggle on to find a place to live—and they still need to find those responsible for the madness they are forced to endure.