Tokyo, Tomobiki Town. Lum, the gorgeous princess of the invading alien race of Oni is smitten with high school student Ataru Moroboshi. A dedicated womanizer, Ataru is unfazed by Lum’s fierce electric shock attacks and continues his daily hunt for pretty girls. With a host of other unique characters, including girl-next-door Shinobu, elegant shrine maiden Sakura, Lum’s best friends Oyuki, Benten, and Ran, Buddhist Monk Cherry, Ten, the little brat, heir to a wealthy family Shutaro Mendo and the masculine beauty Ryunosuke…it's a classic slapstick love comedy where anything goes!
The story centers on third-year high school student Jiro Yakuin, who gets saddled with his gyaru classmate Akari Watanabe for the class's "marriage training" project about practicing to be a married couple. Jiro is the complete opposite of Akari, but the two know that if they do well they will be able to switch partners to end up with their respective crushes, and so they force themselves to act like the perfect married couple.
Shadowbrokers are those who go unnoticed, posing as unremarkable people, when in truth, they control everything from behind the scenes. Sid wants to be someone just like that more than anything, and something as insignificant as boring reality isn’t going to get in his way! He trains in secret every single night, preparing for his eventual rise to power—only to be denied his destiny by a run-of-the-mill (yet deadly) traffic accident. But when he wakes up in a another world and suddenly finds himself at the head of an actual secret organization doing battle with evil in the shadows, he’ll finally get a chance to act out all of his delusional fantasies!
High school student Michio Kaga was wandering aimlessly through life and the Internet, when he finds himself transported from a shady website to a fantasy world — reborn as a strong man who can use "cheat" powers. He uses his powers to become an adventurer, earn money, and get the right to claim girls that have idol-level beauty to form his very own harem.
The reincarnation of Himiko, the former queen of Yamatai, has decided to wage war against all magatama wielders of Kanto. In order to recover her lost kingdom, she must gather the true Three Sacred Treasures of Japan. When Himiko's ally, Asaemon Yamada, ruthlessly attacks Nanyou Academy—which possesses the sacred sword Himiko is after—Chuubou Sonken, Hakufu Sonsaku's newfound sister, awakens her dragon but loses consciousness. Determined to save her sibling, Hakufu must recover her magatama at the Jofuku Temple—a legendary place where she will receive training that may cost her her life. As the frontier between the living and the dead starts to vanish in Jofuku, the warriors of the Kanto region will have to unite in order to foil Himiko's mysterious plans.