Kono Danshi, Uchuujin to Tatakaemasu.

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When aliens suddenly invade the world, Earth seems to be fighting a losing battle until Arikawa, one of the defense command staff, accidentally discovers a young man lying on a hill. Tests soon prove the impossible: this one teenager, Kakashi, has the power to defeat the attackers! Unfortunately, Kakashi has also lost his memory, and with it the knowledge of how to actually use his power. Moving Kakashi in with himself and his own commander, Shiro, Arikawa accidentally starts a strange triangle of emotions and relationships. A triangle that threatens the fate of the planet as Kakashi begins to question his own motivations!

(Source: Sentai Filmworks)
is a site to watch online anime like Kono Danshi, Uchuujin to Tatakaemasu. online, or you can even watch Kono Danshi, Uchuujin to Tatakaemasu. in HD quality
Overview:
When aliens suddenly invade the world, Earth seems to be fighting a losing battle until Arikawa, one of the defense command staff, accidentally discovers a young man lying on a hill. Tests soon prove the impossible: this one teenager, Kakashi, has the power to defeat the attackers! Unfortunately, Kakashi has also lost his memory, and with it the knowledge of how to actually use his power. Moving Kakashi in with himself and his own commander, Shiro, Arikawa accidentally starts a strange triangle of emotions and relationships. A triangle that threatens the fate of the planet as Kakashi begins to question his own motivations!

(Source: Sentai Filmworks)
Other names: Konodan,Kono Danshi,Uchujin to Tatakaemasu.,This Boy Can Fight With Aliens.
Aired: October 10, 2011 to October 10, 2011
Episodes: 1
Premiered: FALL
Duration: 29m
Status: Completed
Anigone is a site to watch online anime like Kono Danshi, Uchuujin to Tatakaemasu. online, or you can even watch Kono Danshi, Uchuujin to Tatakaemasu. in HD quality