If Only You Knew (Boku No Hero Academia FanF...
Being taught to kill at the age of 6, Jan was an assassin who killed people just because she was ordered to and thought it was the right thing. Since she was taught murder was the right thing to do at such a young age, she was led down the wrong path. When she finally found the right path, she drowned saving a child but that wasn't the end of the story. In fact it was a completely new beginning. Somehow she came from the past 500-1000 years ago to the present time as a girl named Shinoa who is younger than her. Thinking she stole someone's body, she thought she should keep it that way, until she realised that being someone else was more difficult than she would imagine. She suddenly came to like the bully of the class, Katsuki and found that he liked her back. If only he knew her real story. But it should be kept a secret, for now.
This book is the sequel to 'The Tale Of The Legendary Jan Arceus'.