Jiro Takayama

Mars is now almost entirely covered in water. Humanity exists in large city-ships that float through the open seas. But life is hard for those who live on Mars--the economy is in bad shape, work is scarce, and food is expensive and highly prized. Gram and his friends try to do the best they can, but the work keeps drying up. Some have taken to a life of piracy to combat the corruption in the government; one such group is the pirates of the feared Ship of Aurora. And the Earth government, which (myanimelist.net)

Having lost the Sword of Light in the previous battle, Lina and Gourry continue their journey in search of a replacement weapon. On the way, the two of them meet up with Amelia and Zelgadis in the kingdom of Luvinagard while taunting some pirates. Lina is happy to reunite with her old friends, but appearing before her is Luvinagard's Inspector of the Special Investigative Unit; a man called Wizer. However, Lina is amazed at his unusual behavior... (myanimelist.net)

To find a way in rescuing Pokota's country Taforashia which was sealed by Rezo, Lina and her group are in search for the Hellmaster's jar in what the Red Priest placed his soul after death. Zelgadis is willing to do anything to get the jar for changing back into a human while Zuuma is plotting on revenge and accomplishing assignment in killing Lina Inverse. Still a big mystery for her and the others is what Xellos is aiming for in this battle. (myanimelist.net)

It is an alternate story to another series, Aura Battler Dunbine, and is set in modern Japan and Byston Well in a timeline of its own

In the distant future, technology on Earth has regressed to World War I levels. Mankind's enormous twenty-kilometer-long space colonies and advanced weapons such as mobile suits have long since been forgotten, relics of a past age. However, an advanced civilization still exists on the moon, and this Moonrace, led by Queen Dianna Soreil, is about ready to come home.