Diva

ディーバ

The ruler of the Bugrom. Aside from a few traits, she looks like a beautiful woman and is the tribe's only fully humanoid member, although this might be an illusion, similar to the ruler of the Insects in the Alternate World of Creteria. When Katsuhiko arrives in El-Hazard and her soldiers bring him before her, she becomes convinced that he is a messenger sent by God, destined to lead the Bugrom to victory over their enemies in the Alliance. Impressed by Katsuhiko's ability to mobilize troops and conquer nations with ease, she also develops a romantic interest in him. When the Bugrom homeland is annihilated by the Eye of God, she avoids the attack by traveling with Jinnai's personal squad to deliver supplies to Katsuhiko on the frontline.
At the start of the Alternate World series, Jinnai urges her to produce eggs for the new colony they are building, because the Bugrom were decimated by the Eye of God—even though more survivors have reached the new colony, their numbers remain insufficient. However, to Jinnai's horror, she needs a mate to give birth to a new generation, and Jinnai is the only male available at the time (at least, that is what she claims). Jinnai's attempt to escape her is why he and his squad are transported to Cretari. Once they return, however, Jinnai is dragged into Diva's amorous embrace.
Diva in The Wanderers
Diva is very much a background character in the OVA, and she doesn't have much more to do in The Wanderers, either. However, the relationship between her, Jinnai, and the bubble-headed Ifurita takes on a rather comedic family dynamic. Also, The Wanderers is the only El-Hazard series in which Diva encounters a human character without a special power to understand the Bugrom language.