El Hazard - The Magnificent World 1-7
When Makoto Mizuhara discovers an old monument in his school and awakens a beautiful woman, he, his teacher, his worst enemy and one of his female friends is transported to the magnificent world of El Hazard. There they discovers that they have received some special powers. Makoto and his teacher Fujisawa lands in a jungle and saves a princess from some large bugs. Makotos friend Nanami lands in a desert. And Makotos rival, Jinnai lands in the middle of the bug’s kingdom and becomes their general, plotting to destroy Makoto and his new friends. After several having his attacks repelled by Makoto several times, Jinnai learns about an ultimate weapon, the demon Ifurita. And so everyone sets of to find Ifurita, and when she's found Makoto learns that she is the same woman that sent them to El Hazard. But the one gaining control of her is Jinnai.

El Hazard 2 - The Magnificent World 1-4 [Shinpi no Sekai Eruhazaado dai 2 ki ]
Continuing the from OVAs; When Fujisawa, suffering from cold feet, leaves Miz at the altar, an enraged Priestess drafts Makoto and friends to go find him. In the couse of locating the hapless (and gutless) teacher, they find another Ifurita. Meanwhile Jinnai and Diva searching for a new Bugrom homeland stumble upon another yet another Demon God, the impish Kalia. However, unlike Ifurita she has a mind, and a mission, of her own...

El Hazard: The Alternative World 1-13 End [Ijigen no Sekai El Hazard]
Miz plans to retire as a Great Priestess of Water to married life with her darling Fujisawa and as replacement the young Qawoor Towles arrives to Floristica. Jinnai sees Qawoor's initiation ceremony as a chance to infiltrate Makoto's laboratory but accidentally activates a mysterious thingy that sends them all through the dimensions to a grey industrial city protected by a huge castle in an alternative world.
*"Thirteenth Night: A Night of Captivation, Temptation, and Purification" as the 13th episode [original was special episode]!