HP: Time Travel to After Dumbledore's Death

There are countless people who have traveled through HP, but there are probably very few people who have traveled through the timeline after Dumbledore's death. There are even fewer who don't go to Hogwarts, or even to the earthly world. Lin Yi: At first he was just an ordinary dead person, but then he gradually became more and more outrageous. Obviously I just want to show off~ However, the world after death is not static, and there are undercurrents surging beneath the calm surface. The introduction is incompetent, so move on to the main text. [The protagonist is a time-travelling college student, an INTP, emotionally stable, and a mess, a typical giant in thought and a dwarf in action. After time travel, he appears to be twelve or thirteen years old, with black hair and black eyes] [The protagonist has no cp, but has an official cp. The protagonist is probably a different kind of group pet] [There is a system, but it does not cheat, and the sense of presence is very low] [The timeline is after Dumbledore's death. It basically doesn't follow the main line, and it won't save the people who died in the original work. The story mainly takes place in the underworld, the kind of underworld where the God of Death exists] [It's hard to say whether the protagonist is HE or BE. I might write two endings. Most of them are sweet, so you can eat them with confidence. Everyone is already dead, so it must be a family fun♡＾▽＾♡ [A large number of supplementary private settings and a large number of original characters. But the author is a textual researcher] Slower pace [Dumbledore may have more scenes in the early stage, which is more of a group portrait] [Possible surprise: directly tell Dumbledore that he knows the development in the next year, but does not say the identity of the time traveler; ]