Fourteen-year-old Iruma Suzuki has been unfortunate all his life, having to work to earn money for his irresponsible parents despite being underage. One day, he finds out that his parents sold him to the demon Sullivan. However, Iruma's worries about what will become of him are soon relieved, for Sullivan merely wants a grandchild, pampering him and making him attend the demon school Babyls. At first, Iruma tries to keep a low profile in fear of his peers discovering that he is human. Unfortunately, this ends up being more difficult than he expected. It turns out that Sullivan himself is the chairman of the school, and everyone expects him to become the next Demon King! Iruma immediately finds himself in an outrageous situation when he has to chant a forbidden spell in front of the entire school. With this, Iruma instantly earns a reputation he does not want. Even so, he is bound to be roped into more bizarre circumstances. [Written by MAL Rewrite]

The anime takes place on the screw-shaped island country of Nejigajima and follows the two "Bokyabots" Hebot and the Yurui Prince Nejiru as they collect different "Bokya Neji" screws. When the Bokyabots wear the Bokya Neji screws on their heads, they're able to compete in "Bokya Battles," battles for who can think up and tell the best jokes. (Source: ANN)

Gintoki, Shinpachi, and Kagura return as the fun-loving but broke members of the Yorozuya team! Living in an alternate-reality Edo, where swords are prohibited and alien overlords have conquered Japan, they try to thrive on doing whatever work they can get their hands on. However, Shinpachi and Kagura still haven't been paid... Does Gin-chan really spend all that cash playing pachinko? Meanwhile, when Gintoki drunkenly staggers home one night, an alien spaceship crashes nearby. A fatally injured crew member emerges from the ship and gives Gintoki a strange, clock-shaped device, warning him that it is incredibly powerful and must be safeguarded. Mistaking it for his alarm clock, Gintoki proceeds to smash the device the next morning and suddenly discovers that the world outside his apartment has come to a standstill. With Kagura and Shinpachi at his side, he sets off to get the device fixed; though, as usual, nothing is ever that simple for the Yorozuya team. Filled with tongue-in-cheek humor and moments of heartfelt emotion, Gintama's fourth season finds Gintoki and his friends facing both their most hilarious misadventures and most dangerous crises yet. [Written by MAL Rewrite]

Second Season of the final arc of Gintama.