Yonosuke Hikura appears to be an ordinary high school student. Yet he has inherited the important role, passed down through generations of his family, of protecting the harmony between Heaven and Earth. With the help of the magical sword Chitentai, and Tsukinojo Inbe, a Protector sent to him by the high Priests of Earth, he courageously battles the demons, sending them back to the Earth World, from which they have escaped.
Tenchi was just a typical high school student with an ordinary life, until one day he accidentally released a beautiful yet angry demon named Ryoko from her sealed prison… and thus his troubles began! In a typical fashion, Ryoko barges into Tenchi’s life and home; but unfortunately, she won’t be the only one. With two princesses, a bumbling intergalactic police woman and a maniacal mad scientist entering the mix, Tenchi has his hands full. Will any of the girls succeed in claiming our young hero for her own? And more importantly, which one will Tenchi choose?
In a post-apocalyptic future, mankind now lives alongside demons, spirits and other supernatural beings. Everyone is interested in coexistence, but every society has rotten apples. The bounty hunter group "Hyper Police" does its part to catch and contain criminals, and with employees such as the half-cat, half-human Natsuki and Batanen the werewolf, law-breakers better watch out.
Linn Suzuki made her way to Tokyo in search of her elder brother but found trouble instead. Lovely Detective Miho Kuon comes to Linn's aid as she is accosted by thugs, and thus begins their adventures together. Linn must endure geeky magicians, fierce tree spirits, and her 100-year-old master all while trying to stay clothed! Full of action and fanservice, Kotetsu is a debacle of martial arts mayhem.