Hogwarts' Human Savior

Traveling to Xingyue, hoping to do something great, he died before he could make it in the war between the alien gods. Soles originally thought that his life would end like a feather in water, but he didn't expect that when he opened his eyes, he would appear in London in the 1980s, and there was a childhood sweetheart named Hermione Granger next door? The psychology of Hogwarts... Does it also need a savior? HP fan, with moon element, single female protagonist