It's summer vacation and Queen Flora of Havoniwa invites Lashara and all of her friends to stay at a Havoniwan retreat. Unfortunately, things can never be just fun and games--a group of bandits have their eyes set on the resort they will be staying at.
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.
