In a world covered by an endless sea of sand, there sails an island known as the Mud Whale. In its interior lies an ancient town, where the majority of its inhabitants are said to be "Marked," a double-edged trait that grants them supernatural abilities at the cost of an untimely death. Chakuro is the village archivist; young and curious, he spends his time documenting the discovery of newfound islands. But each one is like the rest—abandoned save for the remnants of those who lived there long ago. For the first time in six months, another island crosses the horizon, so Chakuro and his friends join the scouting group. During the expedition, they find vestiges of an archaic civilization. And inside one of its crumbling remains, Chakuro discovers a girl who will change his destiny and the world inside the Mud Whale as he knows it. [Written by MAL Rewrite]

The Private Aichi Symbiosis Academy was originally a high school for high-class girls. When it became co-ed, the girls, out of fear, asked to be permitted to bring weapons to school. When that was enforced, a five-member vigilante corps-like organization called the "Supreme Five Swords" was also formed. After many generations, the five swords eventually became a group which corrected problematic students, and the academy started proactively accepting such students in order to correct them. Nomura Fudou was sent to this school after being part of a huge brawl. What will he do when the only options he has after enrolling are being expelled from that school or being corrected the way the rest of the male students there were...by being forced to dress and act like a girl! (Source: Batoto, edited)

Pingu and his family move from their small village to the big city; in which there are many people with many different occupations. The ever-curious Pingu tries to join them at their jobs, but his mischievous side gets the better of him and he ends up messing things up. (Source: ANN)

Following the grim events of Iga, Kokujou Island, Rakuyou, and multiple fruitless confrontations with the Tenshouin Naraku and Tendoshuu, Gintama.: Porori-hen takes its viewers on a trip down memory lane to when Yorozuya were mostly doing what they did best—odd jobs. The great space hunter Umibouzu has returned to Edo and is livid when he finds out that his daughter Kagura has a boyfriend. He blames Gintoki for being an incompetent guardian, but has the time finally come for him to let go of his daughter? Back with shameless parodies, risqué humor, and lively camaraderie, Gintoki, Kagura, and Shinpachi are faced with unforeseen situations that manage to be both hilarious and emotionally stirring. [Written by MAL Rewrite]