HP: a Thousand-Year Journey with the Big Four

[There are OOC, original characters and a large number of private settings, double Nan, five pairs of CP. Regarding the witch hunt plan, I will mention this in the text. No quantitative updates] There are GGAD. GGSS. RRHH. DMHP. Original male protagonist x Sijiao It covers the period from 965 to 1998 and is expected to have 4 volumes. The Big Four can travel through time, but the protagonist survives at such an old age. For the protagonist, a thousand years is a blink of an eye. The God of Watch who lost his best friend from another world traveled to the world of Harry Potter. The reason why he traveled across is also very simple. It is just that the soul of the person he lost is in this world. He wants to find that soul and find what he once lost. However, when he arrived in this world, he discovered that his time was not adjusted correctly, and was almost a thousand years early! But he had no choice but to set the time later, so he began to adapt to this world. Big Four Era Join the Big Four to fight against the Holy See and establish Hogwarts (long) Dungeon Generation The male protagonist (who did not travel through time) and the Big Four (who traveled through time, but knew the male protagonist) first went to Godric's Hollow to witness GGAD's love, and then accidentally ended up in China, where they fought in the Anti-Japanese War (short) parent generation Living next door to Lily, the male protagonist discovered by chance that Sijiao was the reincarnation of his best friend's soul and that Lily looked very similar to him. After prediction, it was discovered that the two of them met when the other was 31 years old (short) descendants Because of accidentally taking Godric's secret potion, the Big Four and the male protagonist turned eleven years old and went to school with Harry (extra long)