De Fuma ninja-clan is een geheime stam ninja's die al generaties lang wacht op de wederopstanding van de 'Orochi' (gigantische slang). Shirasu en zijn tweelingbroer Ichiu groeiden op in deze slijmerige omgeving en zo worden zij de leiders van de clan.
Nee, helaas is 曇天に笑う＜外伝＞～宿命、双頭の風魔～ nog niet beschikbaar op Netflix in Nederland.
| Visual Effects | 木幡美雪 | Color Designer |
| Writing | 河口友美 | Screenplay |
| Visual Effects | 藤崎賢二 | Character Designer |
| Visual Effects | 田中紀衣 | Character Designer |
| Writing | 梅原英司 | Series Composition |
| Art | 手島舞 | Prop Designer |
| Art | 升谷由紀 | Prop Designer |
| Visual Effects | 岡本達明 | Animation Director |
| Visual Effects | 伊澤珠美 | Animation Director |
| Visual Effects | 下條祐未 | Key Animation |
| Visual Effects | 市川敬三 | Animation Director |
| Visual Effects | 永田正美 | Animation Director |
| Visual Effects | 宇佐美皓一 | Key Animation |
| Visual Effects | 吉井勝也 | Key Animation |
| Visual Effects | 本田辰雄 | Key Animation |
| Visual Effects | 杉山京子 | Key Animation |
| Visual Effects | 太田悌記 | Key Animation |
| Visual Effects | 田中宏紀 | Key Animation |
| Visual Effects | 田中紀衣 | Supervising Animation Director |
| Visual Effects | 清水麻未 | Key Animation |
| Sound | Yutaka Yamada | Original Music Composer |
| Visual Effects | 永田正美 | Key Animation |
| Visual Effects | 真辺久輝 | Key Animation |
| Visual Effects | 松浦美穂 | Key Animation |
| Visual Effects | 宇佐美皓一 | Lead Animator |
| Directing | 若野哲也 | Action Director |
| Writing | 梅原英司 | Screenplay |
| Editing | 木村勝宏 | Online Editor |
| Visual Effects | 升谷由紀 | Character Designer |
| Visual Effects | 佐藤真史 | Key Animation |
| Visual Effects | 新宮祐介 | Key Animation |
| Visual Effects | 飯田宏義 | Key Animation |
| Visual Effects | 千葉崇明 | Character Designer |
| Sound | 千田耕平 | Music Director |
| Sound | 高石真美 | Music Producer |
| Visual Effects | 升谷由紀 | Key Animation |
| Visual Effects | 小笠原憂 | Key Animation |
| Visual Effects | 北條裕之 | Key Animation |
| Visual Effects | 市川敬三 | Key Animation |
| Visual Effects | 野崎真一 | Key Animation |
| Visual Effects | 渡部ゆかり | Key Animation |
| Visual Effects | Sun Meng | Key Animation |
| Visual Effects | 升谷由紀 | Animation Director |
| Visual Effects | 下條祐未 | Animation Director |
| Visual Effects | 細川智悟 | Key Animation |
| Visual Effects | みやち | Key Animation |
| Visual Effects | 川崎玲奈 | Key Animation |
| Visual Effects | 小沢久美子 | Key Animation |
| Visual Effects | 橋本季子 | Key Animation |
| Visual Effects | 李少雷 | Animation Director |
| Visual Effects | 安本学 | Key Animation |
| Visual Effects | 斉藤香織 | Key Animation |
| Visual Effects | 尾鼻亮太 | Key Animation |
| Visual Effects | 世良コータ | Key Animation |
| Visual Effects | 吉田尚人 | Key Animation |
| Production | 飯塚寿雄 | Executive Producer |
| Directing | 江副仁美 | Assistant Director |
| Visual Effects | 岡本達明 | Key Animation |
| Visual Effects | 松山光治 | Key Animation |
| Visual Effects | 水野佳樹 | Key Animation |
| Visual Effects | 本多恵美 | Key Animation |
| Visual Effects | 角田春美 | Key Animation |
| Sound | 出雲範子 | Sound Effects |
| Production | 奥永祥正 | Producer |
| Visual Effects | 芳我恵理子 | Key Animation |
| Visual Effects | 笠野充志 | Key Animation |
| Art | 宮本実生 | Background Designer |
| Visual Effects | 伊澤珠美 | Key Animation |
| Visual Effects | 加藤照代 | Key Animation |
| Visual Effects | 宮崎康子 | Key Animation |
| Visual Effects | 清水陽一 | Key Animation |
| Art | 清水哲弘 | Background Designer |
| Visual Effects | 胡拓磨 | Key Animation |
| Visual Effects | 中西麻美子 | Key Animation |
| Visual Effects | 昆富美子 | Key Animation |
| Visual Effects | 千葉崇明 | Animation Director |
| Visual Effects | 千葉崇明 | Key Animation |
| Visual Effects | 小谷杏子 | Key Animation |
| Sound | はたしょう二 | Sound Director |
| Visual Effects | 栫久美子 | Key Animation |
| Visual Effects | 小川みずえ | Key Animation |
| Visual Effects | 박성후 | Key Animation |
| Production | 中塚进一 | Producer |
| Visual Effects | Kamoyuki Mitani | Key Animation |
| Sound | はたしょう二 | Sound Mixer |
| Crew | 原田亜優子 | Special Effects |
| Visual Effects | 田中菜々美 | Key Animation |
| Visual Effects | 今川よしみ | Key Animation |
| Visual Effects | 松田剛吏 | Key Animation |
| Visual Effects | 二宮奈那子 | Key Animation |
| Art | 宮本実生 | Art Direction |
| Camera | 今泉秀樹 | Director of Photography |
| Production | 小助川典子 | Producer |
| Visual Effects | 管振宇 | Animation Director |
| Visual Effects | 土橋昭人 | Key Animation |
| Visual Effects | 飯島傑 | Key Animation |
| Camera | 相田悠樹 | Director of Photography |
| Visual Effects | Yui Mizushima | Key Animation |
| Directing | 相浦和也 | Second Unit Director |
| Directing | 若野哲也 | Second Unit Director |
| Directing | 江副仁美 | Second Unit Director |
| Directing | 青柳隆平 | Second Unit Director |
| Sound | 渡邊雅文 | Foley Artist |
| Visual Effects | 島史也 | Compositing Artist |
| Art | 若野哲也 | Storyboard Artist |
| Visual Effects | 船越雄弦 | Compositing Artist |
| Visual Effects | 中村真衣 | Compositing Artist |
| Visual Effects | 金武慎也 | Compositing Artist |
| Directing | 若野哲也 | Director |
| Visual Effects | Achille Bibard | Key Animation |
