De drie broers ontdekken dat het menselijke experiment dat verboden was na de vernietiging van de 'Orochi' nog steeds aan de gang is om in het geheim de boze slang weer tot leven te wekken. Ze ontdekken ook dat voormalige leden van de Yamainu (de Japanse militaire eenheid die is opgericht om de slang te doden) achter deze samenzwering zitten. De broers vechten opnieuw samen in een strijd tegen het leger.
Nee, helaas is 曇天に笑う＜外伝＞～桜華、天望の架橋～ nog niet beschikbaar op Netflix in Nederland.
| Visual Effects | 木幡美雪 | Color Designer |
| Writing | 河口友美 | Screenplay |
| Writing | 梅原英司 | Series Composition |
| Visual Effects | 松川哲也 | Character Designer |
| Art | 田中孝行 | Storyboard Artist |
| Visual Effects | 日向正樹 | Animation Director |
| Writing | 梅原英司 | Screenplay |
| Visual Effects | 伊澤珠美 | Animation Director |
| Visual Effects | 胡拓磨 | Animation Director |
| Visual Effects | 西原恵利香 | Key Animation |
| Visual Effects | 田中志穂 | Key Animation |
| Visual Effects | 清水麻未 | Key Animation |
| Visual Effects | 升谷由紀 | Key Animation |
| Visual Effects | 才木康寛 | Key Animation |
| Visual Effects | 野崎真一 | Key Animation |
| Visual Effects | 藤崎賢二 | Character Designer |
| Art | 若野哲也 | Storyboard Artist |
| Visual Effects | 山下恵 | Supervising Animation Director |
| Visual Effects | 下條祐未 | Animation Director |
| Visual Effects | 下條祐未 | Key Animation |
| Sound | 高石真美 | Music Producer |
| Visual Effects | 津幡佳明 | Supervising Animation Director |
| Visual Effects | 升谷由紀 | Animation Director |
| Visual Effects | 川崎玲奈 | Key Animation |
| Visual Effects | 皆川愛香利 | Animation Director |
| Visual Effects | 浪上悠里 | Animation Director |
| Visual Effects | 吉田尚人 | Key Animation |
| Visual Effects | みやち | Key Animation |
| Visual Effects | 飯島傑 | Key Animation |
| Visual Effects | 田村皐 | Key Animation |
| Visual Effects | 青木里枝 | Key Animation |
| Art | 宮本惟生 | Background Designer |
| Art | 浅沼信也 | Prop Designer |
| Visual Effects | 永田正美 | Animation Director |
| Visual Effects | 真辺久輝 | Key Animation |
| Visual Effects | 劉雲留 | Key Animation |
| Directing | 박성후 | Action Director |
| Directing | 若野哲也 | Action Director |
| Sound | 松下春香 | Sound Recordist |
| Directing | 高橋謙仁 | Assistant Director |
| Visual Effects | 川崎玲奈 | Animation Director |
| Visual Effects | 三橋桜子 | Key Animation |
| Visual Effects | 浅利歩惟 | Key Animation |
| Art | 宮本実生 | Background Designer |
| Editing | 木村勝宏 | Online Editor |
| Visual Effects | 岡本達明 | Animation Director |
| Visual Effects | Nao Miyawaki | Key Animation |
| Visual Effects | 佐々木幸恵 | Key Animation |
| Visual Effects | 河島久美子 | Key Animation |
| Visual Effects | 早瀬真紀子 | Key Animation |
| Visual Effects | 陸泓熹 | Key Animation |
| Camera | 相田悠樹 | Director of Photography |
| Directing | 武市直子 | Second Unit Director |
| Visual Effects | 細川智悟 | Key Animation |
| Visual Effects | 中西優里香 | Key Animation |
| Visual Effects | 垣内彩子 | Key Animation |
| Visual Effects | 江原康之 | Key Animation |
| Visual Effects | 西原恵利香 | Animation Director |
| Visual Effects | 袴田裕二 | Key Animation |
| Visual Effects | 川上暢彦 | Key Animation |
| Art | 清水哲弘 | Background Designer |
| Visual Effects | 栫久美子 | Key Animation |
| Visual Effects | 八田典子 | Key Animation |
| Art | 宮本実生 | Art Direction |
| Visual Effects | 伊澤珠美 | Key Animation |
| Visual Effects | 松本幸子 | Key Animation |
| Visual Effects | 新宮祐介 | Key Animation |
| Visual Effects | 北條裕之 | Key Animation |
| Visual Effects | 小笠原憂 | Key Animation |
| Visual Effects | Sun Meng | Key Animation |
| Crew | 原田亜優子 | Special Effects |
| Visual Effects | 安本学 | Key Animation |
| Visual Effects | 角田春美 | Key Animation |
| Visual Effects | 田中克憲 | Key Animation |
| Visual Effects | 渡部ゆかり | Key Animation |
| Visual Effects | 今川よしみ | Key Animation |
| Sound | 出雲範子 | Sound Effects |
| Sound | はたしょう二 | Sound Director |
| Sound | はたしょう二 | Sound Mixer |
| Production | 飯塚寿雄 | Executive Producer |
| Visual Effects | 三橋桜子 | Animation Director |
| Visual Effects | 新田知子 | Key Animation |
| Visual Effects | 川崎美穂 | Key Animation |
| Visual Effects | 松浦美穂 | Key Animation |
| Visual Effects | 池田佳織 | Key Animation |
| Visual Effects | Chen Zhongning | Key Animation |
| Sound | Yutaka Yamada | Original Music Composer |
| Production | 奥永祥正 | Producer |
| Visual Effects | 宇佐美皓一 | Key Animation |
| Visual Effects | 神山栄吏 | Key Animation |
| Sound | 千田耕平 | Music Director |
| Art | 川畑喬 | Storyboard Artist |
| Art | 藤崎賢二 | Prop Designer |
| Visual Effects | 岡本達明 | Key Animation |
| Visual Effects | 小谷杏子 | Key Animation |
| Visual Effects | 濱中朋子 | Key Animation |
| Visual Effects | 二宮奈那子 | Key Animation |
| Camera | 今泉秀樹 | Director of Photography |
| Production | 上田陽子 | Producer |
| Visual Effects | 田中紀衣 | Character Designer |
| Visual Effects | 田中紀衣 | Supervising Animation Director |
| Art | 手島舞 | Prop Designer |
| Visual Effects | 永田正美 | Key Animation |
| Visual Effects | 田中志穂 | Animation Director |
| Visual Effects | 박성후 | Key Animation |
| Visual Effects | Yui Mizushima | Key Animation |
| Directing | 久保雄介 | Second Unit Director |
| Directing | 江副仁美 | Second Unit Director |
| Sound | 渡邊雅文 | Foley Artist |
| Directing | 若野哲也 | Second Unit Director |
| Production | 小助川典子 | Producer |
| Directing | 高橋謙仁 | Second Unit Director |
| Visual Effects | 島史也 | Compositing Artist |
| Visual Effects | 中村真衣 | Compositing Artist |
| Visual Effects | 船越雄弦 | Compositing Artist |
| Visual Effects | 金武慎也 | Compositing Artist |
| Visual Effects | 二村文章 | Compositing Artist |
| Directing | 若野哲也 | Director |
