No, a Demon Slayer cannot learn Moon Breathing.
Why Demon Slayers Cannot Learn Moon Breathing
Based on the information available, Moon Breathing is a unique and exclusive Breathing Style used solely by Michikatsu Tsugikuni. He was one of the very first Demon Slayers to learn Total Concentration Breathing.
- Michikatsu Tsugikuni's Exclusivity: Michikatsu, who later became the demon Kokushibo, did not teach Moon Breathing to anyone else. He personally developed and refined it over a long period, even after he became a demon.
- No Record of Transfer: There is no evidence within the lore that Moon Breathing has ever been passed down to or learned by any other Demon Slayer. All other breathing styles, such as Flame Breathing, Water Breathing and Thunder Breathing, have been taught.
Table: Moon Breathing vs Other Breathing Styles
| Feature | Moon Breathing | Other Breathing Styles |
|---|---|---|
| Primary User | Michikatsu Tsugikuni (Kokushibo) | Various Demon Slayers |
| Learning History | Not passed down, personal style | Taught and passed down through lineages |
| Demon Slayer Use | None | Widely Used |
Key Takeaway
The fact that Moon Breathing was never taught and was perfected by Michikatsu over time, even after becoming a demon, means it remains his very own, exclusive technique. Therefore, it is considered impossible for any other Demon Slayer to learn Moon Breathing.
