Y/N and Childe were friends long ago. However as fate would have it the two were seperated, with Childe disappearing one day without a trace. Years go by and Y/N has matured into a fearless adventurer, taking on any and all kinds of commissions without fear. Childe was but a distant memory in the back of her mind, until one day he shows up out of the blue. However, his visit is not a welcome one and he is not here to fix long broken bonds. (Slight Kaeya/Reader!)