魔法戦士エリクシルナイツ～運命に繋がれし乙女たち～

"About the time when the Symphonic Knights were fighting with Falke, began another story in the different place...

The protagonist is 「Silva Radcliff」, a user of transformation magic 『Metamorize』 who came from Palexia of the other world and was a soldier of the Azaheid Empire.

At one point, Silva was informed of the present of the magic power that was started to form on the terrestrial world (the earth) by 『Metzer Heinkel』.

Silva's specialty 『Metamorize』is an high-tier magic that uses its power to transform and interfere with other magic, but his power alone was not enough in his hometown, Palexia, where the magical technologies are so advanced that they can oppose his magic. However, Silva left the army and came to this world. He thought that he could use his power against the terrestrial world that has no magic countermeasure due to recently obtaining the power and illustrate his immense power as well as to rule it.

However, as Silva starts his plan to conquer the terrestrial world, a young girl who is overflowed with sense of justice appears to stop him. Her name is Tachibana Arisu. 

Suddenly, Arisa resonates with Silva's bracelet that stored his magic power and is granted a power to transform into a pretty warrior 『Elixir Knights』. Arisa who is still puzzling now has the power to fight Silva. She has become 『Mahou Senshi』(Magical Warrior), a warrior which Metzer had warned Silva.

Hence, the battle between Elixir Knights and Silva with the earth at stake began..."

Translated from Getchu.
http://www.getchu.com/soft.phtml?id=437545