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"Wednesday Disappeared" should belong to a small fresh film, no particularly profound connotation, not brain-burning, there may be slight abuse but it is fine. </h1>
As for why the male protagonist splits his personality into this, it should start from 16 years ago. 16 years ago, the man moved his family, and suffered a car accident in the middle of the move. Before the car accident, when he left, the female classmate gave him a small gift, which was a pig-shaped keychain, and there would be a siren sounding when pulled. After the car accident, the male protagonist split his personality into a gourd baby and lost his memory, becoming a valuable research object in the hospital. Didn't say parents but I guessed that both parents died.
The female classmate grew up to become an editor's daughter, she originally thought that the male protagonist was dead, and later read a medical article in the magazine and found a person who had a car accident on the same day and place in the same month of the same year. She found the attending physician and entered the room in the name of her elementary school classmates to be friends with the seven personalities of the male protagonist. It is indeed with 7 personalities and not only the one she likes, because she is familiar with the small habits of each personality.