Photon The Idiot Adventures

A young, kind boy named Photon Earth has the word "Baka," which means "idiot" in Japanese, scrawled across his forehead (apparently by his troublemaking friend Aun Freya). One day, after writing "baka" on the attractive fugitive pilot Keyne Acqua's forehead, he discovers himself betrothed to her. And it's the least of his concerns because he has to defend Aun and Keyne from the villain Papacharino, who wants to take the knowledge of "Aho" energy from the ship that belonged to Keyne's great-grandfather.