Silent Möbius

Silent Möbius (サイレントメビウス, Sairento Mebiusu) is a twelve-volume manga series created by manga artist Kia Asamiya. Both anime versions have been licensed by Bandai Entertainment. The series has been adapted into animation twice, once as a pair of films and again as a 26 episode television series. A new manga series started in 2013 which serves as a sequel to the original series. This series, titled Silent Möbius QD, ended in 2015.

Plot
In 1999, Gigelf Liqueur, aided by the Magician's Guild, set into motion a plan to open a gate between Earth and the world of Nemesis. The intent was to exchange Earth's polluted air and water with clean air and water from Nemesis. To aid in this endeavor, a huge cyclotron was built under Tokyo. Unfortunately for all involved, Ganossa Maximilian—Gigelf's old apprentice—sabotaged the plan, opening the gate early and perverting the gate for his own means. Following this event, Gigelf and the Magician's Guild battled an invasion of Lucifer Hawk (the name for the inhabitants of Nemesis) for a number of years. Gigelf was killed in 2006 and it would seem that the rest of the Guild met similar fates over the next few years.

In 2023, Rally Cheyenne, daughter of Guild member Lufa Cheyenne and born of mixed heritage (her father was from Nemesis), felt partially responsible for the growing attacks on innocent humans by marauding creatures from Nemesis. She started the organization with a mere three officers (Kiddy Phenil, Lebia Maverick and Nami Yamigumo) and a sub-commander (Mana Isozaki). Over the next few years, she added Yuki Saiko, Katsumi Liqueur and Lum Cheng to the team, aiding in the fight to protect Earth from the vicious Lucifer Hawk.