The essence of cultivation in this world is a "causal stripping ritual." Every time you break through a great realm, you need to sacrifice your most important "bond memory" in the world as a price. This kind of sacrifice is not a two-way forgetting, but a one-way one - the "forgotten" will completely disappear from all basic knowledge in the world: their birth certificates will be modified, their ID numbers will be overwritten, and everyone who knows them will naturally think that they have never existed. The protagonist is an extremely emotional person. Every time he breaks through, he has to personally "kill" one of his most important people (making the other person disappear from history). He doesn't dare to break through or become stronger, because every time he becomes stronger, he becomes a traitor to this world.
