What the fuck is this 'lumberjack' you're going on about
Unless it's CN arknights lore I don't know, Seaborn are the offspring/internal ecosystem of 'The Firstborn', which are Feranmuts (essentially god-like entities on the planet, Tera) that had been genetically modified by an alien spacefaring race ('Predecessors') in an attempt to create a life form that could survive against the alien race above even them ('Observers') who are capable of destroying the concept of information.
While looking that up I realised yeah that last one is the lumberjack so must be CN lore but less about seaborn and more about the existential threat to the setting as a whole. Seaborn are just one failed project that tried to find a way to survive the Observers, the other is Originium a.k.a. Rock Cancer a.k.a. the central magic mcguffin of the setting.
In short THE CONCEPT INCINERATOR WON'T FUCKING WORK RETARDS THEY LITERALLY EXIST TO COUNTER SUCH THINGS