Chance To Leap Through Time

A Tokyo Revengers Fanfiction where the female reader is the only child of the leader of Bonten organization, Manjiro Sano. Growing up, Y/n never met nor have seen her father. She longed to meet him someday. Even though she never met her old man, she still have her Uncle Takemichi who's been around since she was little. On Y/n's 15th birthday, her uncle gave her a necklace as a gift. After a long talk, discussing about what her father was like, both of them made a promise. As the both of them shook hands, Y/n was transported to another place. She then soon found out that she actually time traveled to year 2005. A year where she wasn't born yet. How did this happen? What earged the time to bring her to another place? What was her promise to her uncle? Will she be able to meet her father, Manjiro Sano?