An Octoling awakens deep underground, lost and suffering amnesia. Upon meeting a strange being called Cap'n Cuttlefish, they join forces and embark on a journey to return home, wherever that is. Soon, they encounter an odd telephone who calls the Octoling Test Subject #10,008 and sends him on a journey to the "Promised Land," a utopian world of light that only those who prove themselves worthy may enter.
With the captain's support, 10,008, now called Agent 8, begins a quest to prove himself by completing a series of tests within the Deepsea Metro, a facility managed by Kamabo Co., and collecting the four Thangs to build a portal to the Promised Land -- home. Each test requires him to perform a certain skill, and as a reward, he receives memories of his past, piece by piece.
Perhaps Agent 8 can prove his worth and make it home. Maybe he can even find himself along the way. But as the shadows of the deep reveal their true nature, he begins to realize that not all is as it seems... and his journey may be nothing more than a trap.
~🎱~
Meanwhile, Delta, AKA Agent 3, awakens far away from home after a sudden ambush during a battle with a strange Octoling boy. In a world entirely foreign to her, she sets off on a quest of her own to find her captain and return home. However, unlike her previous adventures, she cannot do this on her own. She needs help.
Thus, with a partially-Sanitized Octoling hostage at her side, Delta sets her course to reunite with her mentor and find a way home... and perhaps kick a certain Octoling boy's rear along the way. She has a solid plan, and nothing will stop her from success... that is, until Kamabo Co. begins interfering with her mission and its CEO decides he has plans for her, too.
She's faced armies. She's stopped a tyrant. She's even saved the world. But can she learn to trust her companion, to understand the plight of her so-called enemies, and see the strings pulled by the CEO?
Or will this be how she finally falls?
Akikta, the last living remnant of humanity, outsmarted death; he's all that's left, which wouldn't be so bad if it weren't for the state of Earth.
Like the rest of Alterna's residents, he had a dream to see the world above. But once he escaped Alterna, he came to find the surface wasn't quite like what his predecessors foretold. After twelve millennia, life moved on and now the surface is dominated by evolved sentient sea life. To add insult to injury, practically all non-mollusks, more noticeably, mammalians, have gone extinct.
Even if that makes him an endangered species, it does not deter him from his ultimate goal: to save a loved one who was thought to be long lost.
With his only form of help being guidance from a mysterious man on a radio, Akikta will do whatever it takes to bring a piece of his family back and survive in this new era. Even if that means making himself out as an enemy.