Extraterrestrial

 (Japanese: 地球外, Chikyū-gai) is a Japanese science fiction-thriller manga, being published by in Japan and  in the United States since TBD 2012.

Synopsis
Set during a time known as the Great Invasion, a small group of humans aims to protect Earth (more specifically Tokyo) from the invaders.

Main

 * Usui Masayuki (Ulrich Marshall in English) - an eager soldier who joins a group of soldiers in a mission to stop the Kurochi.
 * Masaki Ori (Michelle Oakley in English) - a medic who quickly befriends Usui and often tries to be sure that TBD.
 * Suto Okyoito (Shay Owens in English) - a fellow soldier who is Usui's opposite, serving as his main rival, believing he should be team leader.
 * Kuno Eho (Camila Rhodes in English) - a sniper who is often at odds with Usui due to his immaturity, ending up later develop feelings for him.
 * Blood Wolf - Usui's pet wolf who often TBD.

Supporting

 * General Kami Zenpan (Keith Kirkland in English) - the head of Resistance who TBD.
 * Kukuri Miyazawa (Krystal Mitchell in English) - General Kami's second-in-command who TBD.

Antagonists

 * Queen Ochel - the Queen of the Kurochi who plans to TBD.
 * The Savage One - Orchel's insane henchman who TBD.
 * Omegaeirian - TBD
 * Yoshie Yusa (Yasmin Young in English) - a childhood friend and potential lover to Usui who later betrays him to the Kurochi.
 * Sad Man - a tall, skinny man who is always crying and is prone to insane fits of rage in battle.
 * The Four Horsemen, consisting of:
 * Sharp Dressed Man - TBD
 * The Red Faced Bandit - an odd cowboy-inspired man who is incredibly infamous and will work for anyone with enough money.
 * The Red Faced Bandit - an odd cowboy-inspired man who is incredibly infamous and will work for anyone with enough money.
 * The Red Faced Bandit - an odd cowboy-inspired man who is incredibly infamous and will work for anyone with enough money.

Anime Adaption
An animated adaption of the manga is produced by, airing on since TBD 2017.

An English dub is produced by, airing on [Adult Swim, Netflix or Amazon Prime] since TBD.

Trivia

 * The four horsemen are named after songs.