Kenshi Masaki, the younger half-brother of Tenchi Muyo's Tenchi, finds himself dragged into the world of Geminar and tricked into piloting a bio-mechanical Sacred Mechanoid for an assassination he wants no part of. Once his captors' deception comes to light, Princess Lashara steps in and welcomes him among her followers instead. Torn between courtly intrigue, several women vying for his attention, and a brewing civil war, Kenshi has to figure out how to get back to Earth while surviving Geminar's politics. This manga is a spin-off set in the Tenchi Muyo! continuity.