As Ulti Ace, an alien protecting Earth from the far reaches of space, she normally commands the Earth Defense Force as Captain Yurihoshi Yurina. However, due to the betrayal of a subordinate who secretly harbors sexual desires for Captain Yurihoshi Yurina, she transforms into Ulti A and finds herself in dire straits while battling a giant monster. It was all a trap set by the Dark Demon King (Giant Human Chair), who preys on human desires. Thus, the giant heroine Ulti A becomes an outlet for the...