Ultimate book 1. Lio, an escaped mad science experiment on the run from a terrorist organization, finds a second home with a group of war orphans under the wing of a famed military general. But when corruption in the ranks threatens the safety of their haven, she must choose: flee, or potentially sacrifice her freedom to protect those who gave her a home.

Ultimate book 2. Lio, an escaped mad science experiment still on the run from a terrorist organization, has made some new friends across the universe bound together by their efforts against the warring empires. But everything she has built, predictably, goes to shit when gods, god killers, and one annooying police officer who just doesn't like her come together to wreck her shit.

Ultimate book 3. Lio, an escaped mad science experiment still on the run from a terrorist organization, has been betrayed. Her only ally, a war criminal hellbent on turning her into a weapon, won't protect her if she leaves him. But the ghosts of the dead are calling her name, and she must decide if bringing death is worth saving lives.

Ultimate book 4. Lio, a mad science experiment turned god, is ready to sink her fangs into the terrorist organization that created her. There's so much blood on her hands; what's a little more? But the great governments of the universe are ready to give the terrorists amnesty if they join the great military. Lio doesn't trust that this will go well, but what can she do? Kill them all anyway?