The origin and past history of the young green-skinned girl known as Jentorra remains a mystery, but she proclaims to be the niece of Queen Jarella
of the planet K'ai within Sub-Atomica. Jentorra followed her ancestors' path and began studying magic under the tutelage of the Triad of Sorcerers. After learning the sadistic Psyklop
, servants of the Dark Gods, were on the verge of invading K'ai, she cast a teleportation spell that would bring the Hulk
to K'ai to save the planet. However, the Hulk's upstart son, Hiro-Kala
, was brought to K'ai instead, and he quickly and violently killed a hive of mutated Psyklop warriors, resulting in his swift rise to messiah of the K'ai people. Unlike the rest of the K'ai populace, Jentorra viewed Hiro-Kala as an oppressor, and she allied herself with the Microverse freedom fighters, Arcturus Rann
, Princess Mari
and the Death's-Head robot Carl. Rann defeated the would-be dictator with an ancient artifact known as the Enigma Force Nullifier, and Jentorra cast a second teleportation spell to send Hiro-Kala back to his point of origin, but he manipulated the spell to not only take him out of Sub-Atomica, but the entire planet of K'ai as well. K'ai and all its people were transported through the a gaping hole in space and time known as the Fault.