Six years ago, Harry and Snape accidentally fell down, and six years later, Harry and Snape unexpectedly woke up from the same bed. The two people who were once incompatible have now become an intimate couple. Even though everyone recognized the relationship between the two, the two insisted that it's+a+big+mistake. The two who tried to go back to the past discovered a huge secret hidden in Harry's body. If you want to go back to the past, you must crack it. In such a huge MISTAKE, the two gradually began to re-recognize the real each other.