After the two protagonists woke up, they found themselves on the rooftop. They had lost their memory and could only remember their names. The only way out of the rooftop was locked. In order to go out to find clues, the two found the notebook in their bag. After reading it, their memories came back. Then the two of them solved the case bit by bit and recovered their memories, only to discover that the name they remembered was the other's. (Written casually, it may be inconsistent with the content) It doesn't look good, so I suggest you not click in.
Intention: None