Barty Crouch Jr. X Celestine Ainsworth Cartwright (original heroine)
The female is strong in the early stage, prefers to save, and is strong in the late stage
Tom Riddle (The Diary) is the heroine's brother
Three people are the protagonists, Chaos is the first order, interests come first, they don't side with Dumbledore, and they don't side with Voldemort and the Death Eaters.
Also Cedric x Cho Chang
Purpose: Change your destiny and live your life