Ok, so my headcanon, au? Idk whatever they version of splatoon I project my creativity into,

Yessss

Alright Marina, And Agent 8 r sister, I mean long lost sisters idk, anywho there mother used part of the Octavian forces, and met there dad a wandering orphan who was against war, wich eventually he convinced to stop fighting and give peace a change and whatnot they get married and have 3 kids Marina, Skewba (pronounced scuba she’s agent 8) And Diveling (Skewba’s twin brother) when there really young the the family got separated fleeing from a strike from inkling army on the underground town they lived in, marina with her mom, wich were able to escape to different town/cave system place, were her mother ended dyeing of her wounds making her orohan she join octrain army u know the rest, then Skewba and Diveling go with father also able to escape to another town, but not anywhere there family, who they belive are dead, Skewba and Diveling were raised by there father is poor community, evantaully Skewba joins the octorain forces to try extra money even if not much for her family