Moon Breathing

Moon Breathing (月 (つき) の呼 (こ) 吸 (きゅう) , *Tsuki no Kokyū*?) is a Breathing Style derived from Sun Breathing.

## Overview

Moon Breathing is a Breathing Style that mimics the moon, specifically the shape of traditional crescent moons, and replicates it with the user's movements, techniques and abilities. Most, if not all, known techniques and forms are standard yet varied swordsmanship techniques that focus on swift and powerful strikes which blends both offense and defense. Most sword slashes performed follow the shape and pattern of crescent moons.

Like all of the other original Breathing Styles, Moon Breathing also branched out of Sun Breathing. When its creator, Michikatsu Tsugikuni, attempted to learn Sun Breathing from his twin brother, Yoriichi Tsugikuni, he discovered he was unable to master it, instead creating and mastering an alternate Breathing Style which later became Moon Breathing.

Moon Breathing is solely used by Michikatsu Tsugikuni, one of the first Demon Slayers who utilized Total Concentration Breathing, and is a Breathing Style which he continued using and perfecting after becoming a demon. Kokushibo uses Moon Breathing in conjunction which his Blood Demon Art, which allows him to unleash barrages of erratic crescent moon-shaped blades, an ability which compliments his Breathing Style and also made it more deadly and effective.

As Kyojuro Rengoku and Muichiro Tokito, two high-ranking members of the Demon Slayer Corps, were not aware of the existence of Moon Breathing, it is possible that the knowledge of its existence was either lost in history (similar to the Demon Slayer Marks) or intentionally forbidden due to the associated user's actions: defecting to Muzan Kibutsuji and killing a head of the Demon Slayer Corps.

## Techniques

1. **First Form: Dark Moon, Evening Palace** (壹 (いち) ノ型 (かた)  闇 (やみ) 月 (づき) ・宵 (よい) の宮 (みや) , *Ichi no kata: Yamidzuki - Yoi no Miya*?) - Kokushibo draws his katana and performs a singular horizontal slash following a crescent shape, creating numerous chaotic crescent blades along its path, before sheathing it back into his scabbard. This technique is extremely reminiscent of Iaijutsu.
2. **Second Form: Pearl Flower Moongazing** (貳 (に) ノ型 (かた)  珠 (しゅ) 華 (か) の弄 (ろう) 月 (げつ) , *Ni no kata: Shuka no Rōgetsu*?) - Kokushibo performs three crescent-shaped slashes while releasing a multitude of crescent moon blades along with them.
3. **Third Form: Loathsome Moon, Chains** (參 (さん) ノ型 (かた)  厭 (えん) 忌 (き) 月 (づき) ・銷 (つが) り, *San no kata: Enkizuki - Tsugari*?) - Kokushibo performs two extremely broad crescent-shaped slashes directly in front of him, from which a storm of smaller crescent moon blades are released.
4. **Fourth Form: Solar Rings, Frostmoon** (肆 (し) ノ型 (かた)  太 (たい) 陽 (よう) 輪 (りん) ・霜 (しも) 月 (づき) , *Shi no kata: Taiyōrin - Shimodzuki*?) - Kokushibō performs a circular small cyclone slashes of chaotic blades straight towards his opponent.

	* **Fourth Form: Improved, Red Sun over Paradise** (肆 (し) ノ型 (かた) ・改 (かい)  緋 (あっき) 陽 (よう) 樂 (らく) 薗 (えん) , *Shi no kata kai: Akk'yō Rakuen*?) - Kokushibō spins his blade slicing through the ground and ripping it out. Causing multiple 180 slashes across the area to be sended towards his opponents as chaotic blades appear when near the enemy slicing into their body. As the circular slashes spin grinding into the enemys skin.
5. **Fifth Form: Moon Spirit Calamitous Eddy** (伍 (ご) ノ型 (かた)  月 (げっ) 魄 (ぱく) 災 (さい) 渦 (か) , *Go no kata: Geppaku Saika*?) - Kokushibo creates multiple long and curved slashes layered over one another, essentially creating a vortex of crescent moon blades. As stated by Sanemi Shinazugawa, this technique was performed without Kokushibo swinging his katana.
6. **Sixth Form: Perpetual Night, Lonely Moon - Incessant** (陸 (ろく) ノ型 (かた)  常 (とこ) 夜 (よ) 孤 (こ) 月 (げつ) ・無 (む) 間 (けん) , *Roku no kata: Tokoyo Kogetsu - Muken*?) - Using his altered katana, Kokushibo performs a frontal crescent-shaped slash that unleashes numerous straight and curved slashes that expand outward.
7. **Seventh Form: Mirror of Misfortune, Moonlit** (漆 (しち) ノ型 (かた)  厄 (やっ) 鏡 (きょう) ・月 (づき) 映 (ば) え, *Shichi no kata: Yakkyō - Dzukibae*?) - Using his altered katana, Kokushibo performs a frontal crescent-shaped slash that unleashes numerous straight and curved slashes that expand outward.
8. **Eighth Form: Moon-Dragon Ringtail** (捌 (はち) ノ型 (かた)  月 (げつ) 龍 (りゆう) 輪 (りん) 尾 (び) , *Hachi no kata: Getsuryū Rinbi*?) - Using his altered katana, Kokushibo performs a massive long-ranged curved slash that leaves dozens of crescent moon blades along its path.
9. **Ninth Form: Waning Moonswaths** (玖 (く) ノ型 (かた)  降 (くだ) り月 (づき) ・連 (れん) 面 (めん) , *Ku no kata: Kudaridzuki - Renmen*?) - Using his altered katana, Kokushibo performs multiple curved slashes, all in close proximity, that leave numerous crescent moon blades along its path.
10. **Tenth Form: Drilling Slashes, Moon Through Bamboo Leaves** (拾 (じゅう) ノ型 (かた)  穿 (せん) 面 (めん) 嶄 (ざん) ・蘿 (ら) 月 (げつ) , *Jū no kata: Senmenzan - Ragetsu*?) - Using his altered katana, Kokushibo creates three rotating circular saw-like slashes with crescent moon blades following their path.
11. **Eleventh Form: Cosmic Infernadoes** (拾 (じゅう) 壹 (いち) ノ型 (かた)  遠 (えん) 大 (だい) 焦 (しょう) 龍 (たつ) 巻 (まき) , *Jū Ichi no kata: Endai Shōtatsumaki*?) - Kokushibō twirls his blade to create multiple chaotic structures of pure slashes that bear striking resemblance to actual tornadoes/cyclones that slowly chase down their foes. In addition to that, the chaotic blades emanating from the slashes act much like debris from the respective disaster.
12. **Twelfth Form: Waxing Moonstones** (拾 (じゅう) 貳 (に) ノ型 (かた)  上 (のぼ) る月 (づき) ・月 (げっ) 長 (ちょう) 石 (せき) , *Jū Ni no kata: Noborudzuki Gecchōseki*?) - Kokushibō Backflips into the air. He twirls his blade turning his grip into a reverse grip before swinging his reverse blade down onto the ground. Sending large crescent spinning blades around him t burst out of the ground and shatter. Sending it towards his opponents.
13. **Thirteenth Form: Midnight Anarchy, Animosity** (拾 (じゅう) 參 (さん) ノ型 (かた)  真 (ま) 夜 (よ) 中 (なか) 無秩 (むちつ) 序 (じょう) ・敵 (てき) 意 (い) , *Jū San no kata: Mayonaka Muchitsujō - Teki'i*?) - Kokushibō launches and slices in a singular motion causing 4 slashes to appear these 4 slashes appear withhin the enemys shoulders and knees. kokushibou then swings his sword ina singular motion causing a spinning slash to appear ripping whoever he is attackings ribs apart.
14. **Fourteenth Form: Catastrophe, Tenman Crescent Moon** (拾 (じゅう) 肆 (し) ノ型 (かた)  兇 (きょう) 変 (へん) ・天 (てん) 満 (まん) 繊 (せん) 月 (げつ) , *Jū Shi no kata: Kyōhen - Tenman Sengetsu*?) - Using his altered katana, Kokushibo performs a multitude of curved slashes which expand outward in every direction that incrementally grow in size, essentially creating an omni-directional vortex of crescent moon blades that surrounds him.
15. **Fifteenth Form: Orbiting Destructive Worlds, Creation** (拾 (じゅう) 伍 (ご) ノ型 (かた)  周 (しゅう) 回 (かい) 破 (は) 壊 (かい) 的 (てき) な世 (せ) 界 (かい) ・創造 (そうぞう) , *Jū Go no kata: Shūkai Hakai-Tekina Sekai - Sōzō*?) - Kokushibō swings his enlarged flesh sword along with the blades emerging from his flesh around his body in order to create dozens of chaotic slashes that completely surround and orbit around his entire body. This can be used for both offensive and defensive capabilities.
16. **Sixteenth Form: Moonbow, Half Moon** (拾 (じゅう) 陸 (ろく) ノ型 (かた)  月 (げっ) 霓 (こう) ・片 (かた) 割 (わ) れ月 (づき) , *Jū Roku no kata: Gekkō - Katawaredzuki*?) - Using his altered katana, Kokushibo swings upward, sending six curved slashes crashing down several meters in front of him, powerful enough to leave craters in their wake.
17. **Seventeenth Form: Black Ring, Lunar Eclipse** (じゅしち / なな (セブンティーン) 型 (かた) ・黒 (ブラック) 環 (リング) 月食 (金環日食) , *Jū Shichi no kata: Kuromaru, Gesshoku*?) - Kokushibo dashes at the opponents and does a horizontal spin slash around the opponent while also releasing several chaotic blades as it goes in a circle along with the spin slash to further the reach of the attack that can reach the length as Tokyo's. This is also a recreation of the failed attempts of one of sun breathing technique; Dance/Waltz.
18. **Eighteenth Form: False Paradise, Dim Moonlit** (じゅはち (十八) 型 (かた) ・黒 (ブラック) 偽りの楽園 ({{{2}}}) 朦朧 (陰る) 月明かりの

 (月明かりに照らされて) , *Jū Hachi no kata: Itsuwari no Rakuen, Usugurai Tsukiakari*?) - Kokushibo concentrates his mind and breathing as the opponent charges, or Kokushibo charges, and beheads him for only to be met with an afterimage followed by a powerful horizontal strike from behind by Kokushibo. This Form can be repeated as Kokushibo pleases if he was being attacked multiple times. This is also a recreation of the failed attempts of one of sun breathing technique; Fake Rainbow/Parhelion Rainbow.

1. **Nineteenth Form: Silver Serenade, Moon-Dragon Dance** (じゅきゅう/く (十九) 型 (かた) ・セレナーデの (セレナーデの) 銀 (シルバー) 月の (月の) 竜 (ドラゴン) , *Jū Kyu no kata: Gin no Serenāde, Ryuuza no Mai*?) - Kokushibo performs a fluid and graceful yet aggressive dance that has a crescent flow as the chaotic blades follow the pattern with Kokushibo's Blood Demon Art enhancing taking the form of a dragon made with the same Blood Demon Art as the chaotic blades. This is also a recreation of the failed attempts of one of sun breathing technique; Dragon Sun Halo Head Dance/Solar Halo Dragon Dance.
2. **Twentieth Form: Tsukikami Kagura** (にじゅう (二十日) 型 (かた) ・月髪

 (月髪) 神楽 (神楽) , *Ni Jū no kata: Tsukikami Kagura*?) - A technique made by Kokushibo with the specific use of overwhelming the Hinokami Kagura Users/Sun Breathers. Kokushibo performs all forms from first to last with the addition of the improved ones while also can combine two forms at once. This was made during some time after when Kokushibo learned the Kamado traditions of the Hinokami Kagura as when Muzan was dealing with the Kamado family during that faithful night with the last survivor away from the event.

## Trivia

* The Fourth Form: Improved is a reference/inspiration to Metal Gear Rising: Revengeance, specifically Sundowner's Boss Theme "Red Sun".