k was 11 when she decided to become gender-fluid. then, it was 3 months after that when k decided that they wanted to become trans, at that time k wasn't sure about his parents opinion but his brother, Tyler said they'd go through this together as brothers and his best friend of all time axel said they both will never be alone because they will always be there for them both, and so it was settled . How will they get through these emotional times together? the answers are in the book.