woohoooo. immortality finally. spider cuteness upgrade, buttons and fluff. more D. love it.
Immortality is explained
by D so all the ppl who think its broken will understand next chapter, it is a skill very valuable but not without limits. its also fully accessible by everyone within the system, though for most it costs 1,000,000 skill point(ie: with no similarities that would lower cost) and i believe this specific evolution is the only race that acquires it naturally at no cost (for very specific reasons [D is a troll]).
However, this does officially mark the end of Kumoko being remotely in the realm of common sense and normal powerful entites. for example
she has basically surpassed the dragons residing this world, and is almost on par with Mother (ie strongest natural system Race). Shes joined the top of the Systems food chain with Ariel and Potimas, though far less than Gyuri, D, or others outside the System.