Sirius Black and Marlene Mckinnon had a daughter, Elara Venus Black, on November 19th, 1980. James Potter and Lily Evans had a son, Harry James Potter, on July 31st, 1980. Sirius and Marlene were Harry's godparents, while James and Lily were Elara's. Harry was sent to his maternal aunt after his parent's death and Elara lived with her mother and aunt Cassiopeia while her father was wrongfully imprisoned.
Elara had magic different from her fellow witches and wizards. She later learned that it was elemental magic, and it came naturally to her along with Legilimency and Occlumency. She had Magic hair which healed all, and Magic hands which let out ice, perfect aim, and a worrying love for Daggers.
After living her life with Harry Potter, the end of the war brought her great sadness, her father was dead, her mother was dead, everyone she held dear was gone, and the victory wasn't worth it, she realised. The grief pushed her to do the unthinkable. She, along with Harry, travelled back to the beginning, for another chance, a restart. Hermione Granger, Daphne Greengrass, Neville Longbottom and Draco Malfoy, Dear friends of the couple, Had insisted that they not go alone, and joined them.
Victoria Hector was a law graduate in the muggle world. An Auditor in the wizarding world and the young girl recently obtained the title of Master of Time and Death from her late father. Being a great friend of Harry Potter and Elara Black, she helped them save their lives.
I only own Elara Black, Victoria Hector and the plot.