[Demon Slayer] Data Compilation

Mainly for own use. In order to write the article, I compiled breathing techniques, timelines, Taishō thoughts, trivia, and other things, as well as correcting/distinguishing official settings from second settings (I used to have second thoughts in my head, and my eyes wandered). Reference: comics, animations, formula books, encyclopedias, etc. Errors can be corrected. 2026.5.24: I have finished sorting it out for the time being. If there is anything I want to sort out later, I will talk about it later. Then I would like to say that I, my thunder child, Koto Nin, is kind and good, and I am not sure if I have said anything about CP before. I admit that I have sneered at him before, but I stopped after reading the Demon Slayer manga. I feel sorry for Miss Shinobu and Kotonoha for having such thoughts. Now that I see it, I am already a very thunderous CP. I have always disliked Yue Yue. I will not accept any whitewashing remarks, hardships, or fan-set brainwashing packages. I cannot escape the death of my grandfather who committed seppuku, the seven lives in the temple, and the prison sentence of Mingming Island. Purpose: Organizing materials for writing articles.