Yoshihisa Kamo

Spending their summer on an exotic beach, two brothers fall for the same beautiful girl, whose charm and looks may hide more than they they bargained for.

Prince Planet was sent from his home planet Radion to study the people of Earth and help them in their fight against evil. His power comes from a pendant he wears, which can only be recharged by energy transmitted from Radion.

Donning a special mask, a young man defends the planet. (Source: AniDB)