Yuji Midorikawa is your typical high school student who has a secret identity: He is Green in the high school battalion unit, Gakusei 5 (G5 for short). G5 is the special unit trained to fight and protect Earth against the invasion of the dreaded Galactic force Gurdark and its sexy queen Mayura. But Green has a problem. He really can't fight, and always ends up hiding behind his other team mates. What ensues is a witty and wild ride as our Imperfect Hero struggles to maintain his reputation as a guardian of earth while keeping up his grade point average in school!

Akaten☆Hero! was published in English as Imperfect Hero by ComicsOne from November 13, 2004 to November 21, 2005.