Demonic Vice-Commander of the Shinsengumi, Toushirou Hijikata, acquires a cursed sword—one which completely rewrites his personality, morphing him from a hard-boiled, no-nonsense cop into a hopeless otaku. As he struggles to break the curse, an ambitious new member of the police force, Itou Kamotarou, seizes the opportunity to depose Hijikata in his bid for power within the organization. However, Itou's scheme is revealed to be more devious than anyone imagined, and the very existence of the Shinsengumi is thrown into peril. In another time and place, the Yorozuya squad is suddenly greeted by a potential new recruit. Before them is a mysterious young woman named Pirako Doromizu who hides a penchant for extreme violence behind her smiling, enthusiastic exterior. However, unbeknownst to Gintoki and the others, Pirako has strong ties to one of the ruling figures of the Kabuki district of Edo, and her arrival sets off a chain reaction that throws the inhabitants of the district into a civil war.

In Kyokutei Bakin's classic Japanese epic novel Nansou Satomi Hakkenden, eight samurai serve the Satomi clan during Japan's tumultuous Sengoku (Warring States) era. The Edo-era samurai are the reincarnations of the spirits that Princess Fuse mothered with a dog named Yatsufusa. In Fuse Gansaku: Satomi Hakkenden, the female hunter Hamaji comes to her brother in order to hunt Fuse. Thus, the karmic cycle of retribution that began long ago with the Satomi family begins anew.

Belgium and Luxembourg tend to be at the mercy of others, so they pledge to become strong. Meanwhile, Belgium is curious about a certain dog that tourists often ask about. Merry Christmas! Italy, Germany, and Japan take a look at how others spend Christmas. Italy visits Germany on December 31st. Let's check on how everyone is spending New Year's. Japan also learns how to make Stollen from Germany before Christmas.

Three sisters, Hozuki, Kazuki, and Hazuki, are descendants of Galileo and have completely different personalities and tastes; they never meet eye-to-eye. One day, the girls are suddenly attacked by a mysterious organization. The organization was after the "Galileo Tesoro" which Galileo Galilei was said to have discovered. Still unaware of what was going on, the sisters escape on the airship they built after the sudden attack. But it won't be so easy for these three sisters to help each other out in a pinch when they're constantly at odds with each other. What is the Tesoro, and what is the organization after? And what about the relationship between the sisters? It's a threesome of cute girls, action, and mystery!