The story is set in an alternate world called Geminar, where countries have fought endless wars with replicas of humanoid Seikishi weapons that they found in ancient ruins. 15-year-old Kenshi Masaki, the half-brother of Tenchi Muyo! protagonist Tenchi Masaki, is summoned from another world to Geminar.
Season 1
Young Kenshi Masaki was taken from his home planet, transported to a distant galaxy, and captured by a gorgeous princess! This royal beauty claims Kenshi as her personal servant—and lends him out to all the lecherous ladies at her prestigious boarding school. When Kenshi doesn’t have his hands full with a curvaceous coed, he can be found training for a looming intergalactic mecha battle.