
Actually "Cellular Memory Syndrome" is an actual theory, it suggests that cells throughout the body can retain information about past events, much like how they retain information about their function and environment. As for organ transplant recipients, some have reported acquiring taste, preferences, and memories of their organ donor— which is the basis for Jay's acquisition of the door's memories, as CMS suggests that organ transplant might share memories of their donors. It's not a widely accepted scientific topic that's why it sounds fictional but it's a "real hypothesis" made from recipient testimonies and would remain that way until it's proven otherwise.
am I the only one who finds this really unbelievable? like the MC just happens to get himself kidnapped and just happens to find the guy who appeared in his dreams also what’s with the plot where he has the memories of the ML’s ex or whatever bc of his hesrt transplant— it’s kinda hard to suspend my disbelief but ig it’s only the beginning stages of the story