[HP Fan] Best Friend for Life

In their previous life, after the war, Harry and Ron formed families with Hermione and Ginny respectively, and lived to be a hundred years old. In the eyes of outsiders, they are Harry Potter, the savior, former Auror captain and principal of Hogwarts School of Witchcraft and Wizardry, and Ron Weasley, the legendary hero and the longest-serving meritorious Auror captain in history. He is a lifelong best friend and the best brother. However, only they knew that a potion accident more than half a century ago caused the two to have an intimate relationship for a month. After recovering from the control of the potion, the two of them chose to forget the incident in order not to affect the people they loved deeply. After all, they both have their own families, and out of their understanding of each other, they secretly believe that they are just an accident, and not disturbing each other is the greatest respect for each other. At the age of 100, their relatives have left one after another. Two centenarians who have always adhered to the boundaries of close friends all their lives chose to accompany each other until the last moments of their lives... However, when the two woke up again, they found that they were 14 years old again and returned to Hogwarts in the fourth grade. The difference is that this is actually an ABO world. Harry has already differentiated into Alpha, while Ron is in the window of differentiation into Omega... In a new world, where will two people who had a crush on each other go from here? Purpose: Everyone is responsible for building cold CP