Arknights: I Swept Terra with Amnesia at the Beginning

(Arknights, the system is useless, partial invincibility, plot-oriented, fight the lumberjack in the later stage) A huge pit appeared in Rembilo, and an elf woke up from it, only to find that he had lost all memory except common sense. Under the supervision of the system, the elf named Yu Moran embarked on a journey to retrieve his memory. But later he discovered that this system was of no use except nagging, and he had to handle everything by himself. Yu Moran and Kelxi met by chance. With Kelxi's help, Yu Moran learned about the existence of memory crystals and narrowed the search scope for crystals. After passing through all the obstacles and gradually regaining all his memories, Yu Moran began to doubt his true self, and gradually learned the truth of everything. How should he deal with an enemy from outside? Should we unite the entire land, or take risks alone? Yumoran is still moving forward