Continuing from the end of the previous OVA, Lady Tokimi sends the warrior Z to Earth to investigate Tenchi and his ties to Washu and Tsunami. Though ordered not to harm Tenchi, Z pursues his own agenda, quickly creating trouble for the hero. Meanwhile, Tenchi’s father and grandfather decide it is time for him to learn more about his past and Jurian heritage. The arrival of two new female residents in the Masaki household further destabilizes the balance and intensifies the rivalry over Tenchi’s divided affection.