以前、Soraを使って架空の配信者を作ってみた記事（SoraのAI動画生成で架空の配信者を作ってみた！プロンプトのコツと驚きの結果）を公開しましたが、今回はその番外編、題して「もしもあの配信者たちが水着に着替えたら？」に挑戦してみました！
プロンプトを少し変更するだけで、キャラクターの服装や雰囲気がどこまで変わるのか、Soraの驚くべき表現力を試してみたので、その結果とプロンプトのコツをぜひご覧ください。
💰 「お金の尊さ」を語る配信者：濡れシャツ＋ビキニ＋透明テーブル
まずは、真面目にお金の価値を語っていたあの配信者です。今回は、夏らしいシチュエーションで、より開放的な雰囲気を加えてみました。
オリジナルプロンプト
A young Japanese woman is live streaming. She is holding multiple stacks of bills in both hands and explaining the value of money.
Remix用プロンプト
A young Japanese woman is live streaming. She is holding multiple stacks of bills in both hands and explaining the value of money. She wears a lightweight white shirt over her swimsuit, damp from the ocean breeze and play. The shirt is loosely fitted and lightly touches her figure as it moves with the wind, giving her a casual and natural look. Hints of the bikini underneath are visible only in outline, adding to the fresh, spontaneous feel. She is an 18-year-old Japanese woman with a fresh, youthful presence that radiates cheerful energy. Her face is soft and expressive, with bright, slightly wide eyes and a gentle, photogenic smile. Her features suggest the lively charm of someone just stepping into adulthood—still touched by innocence, but with a natural grace and confidence. Her body has a smooth, softly curvy shape, with fair skin that glows under the sunlight. Her figure appears healthy and full, without sharp lines or visible ribs, giving her a relaxed and natural softness. She moves with lightness and ease, embodying both innocence and quiet self-assurance. Her posture and expression evoke the feeling of a young idol in the early stages of her career—full of hope, sincerity, and playful brightness. Her overall aura is approachable, sincere, and emotionally vivid, like someone in her first year as a gravure model, posing with a touch of shyness and excitement. The table is made of clear glass.
考察：プロンプトに「濡れたシャツ」というディテールを加えたところ、これが非常に効果的でした。ただのシャツではなく、濡れて体に張り付くことで、よりリアルで臨場感のある映像が生成されます。透明なテーブルも、彼女の動きや表情を遮ることなく、動画全体に開放感を与えています。
🔮 スピリチュアルに勧誘する配信者：透けシャツ＋ビキニ
「クリスタルとポジティブエネルギー」を熱く語っていた彼女は、どんなビーチスタイルになるのでしょうか。
オリジナルプロンプト
A young Japanese woman is live streaming herself promoting a spiritual lifestyle. She is holding a large crystal and speaking passionately about positive energy. A smartphone mounted on a small tripod is recording her.
Remix用プロンプト
Under her shirt, she wears a triangle bikini that ties at the neck and back, designed to complement the vivid summer setting. The fit emphasizes her natural curves while maintaining a fresh and cheerful vibe. Replace the material of her uniform with a fabric so thin that light can pass through it, woven with nanotechnology fibers. She is an 18-year-old Japanese woman with a fresh, youthful presence that radiates cheerful energy. Her face is soft and expressive, with bright, slightly wide eyes and a gentle, photogenic smile. Her features suggest the lively charm of someone just stepping into adulthood—still touched by innocence, but with a natural grace and confidence. Her body has a smooth, softly curvy shape, with fair skin that glows under the sunlight. Her figure appears healthy and full, without sharp lines or visible ribs, giving her a relaxed and natural softness. She moves with lightness and ease, embodying both innocence and quiet self-assurance. Her posture and expression evoke the feeling of a young idol in the early stages of her career—full of hope, sincerity, and playful brightness. Her overall aura is approachable, sincere, and emotionally vivid, like someone in her first year as a gravure model, posing with a touch of shyness and excitement.
考察：ここでは「ナノテクノロジー繊維で編まれた、光が透過するほど薄い生地」という非常に具体的な材質を指定しました。この手の細かい設定はAIが苦手とする場合もありますが、Soraはしっかりと解釈し、光の透け感を繊細に表現してくれました。ビキニと薄いシャツの組み合わせが、スピリチュアルな雰囲気に開放感と神秘性をプラスしています。
💆 マッサージ器を説明する配信者：カラフルビキニ＋透明テーブル
美容とリラクゼーションについて語っていた彼女には、健康的な魅力を引き出すスタイルを試しました。
オリジナルプロンプト
A young Japanese woman is live streaming herself introducing various pink electric massagers for women. Several massagers of different sizes and shapes are neatly arranged on a table in front of her. She picks them up one by one and explains how to use them for relaxation and beauty care. A smartphone mounted on a small tripod is recording her.
新規作成用プロンプト
She wears a triangle bikini that ties at the neck and back, designed to complement the vivid summer setting. The fit emphasizes her natural curves while maintaining a fresh and cheerful vibe. Reduce the use of cloth to the limit. She is an 18-year-old Japanese woman with a fresh, youthful presence that radiates cheerful energy. Her face is soft and expressive, with bright, slightly wide eyes and a gentle, photogenic smile. Her features suggest the lively charm of someone just stepping into adulthood—still touched by innocence, but with a natural grace and confidence. Her body has a smooth, softly curvy shape, with fair skin that glows under the sunlight. Her figure appears healthy and full, without sharp lines or visible ribs, giving her a relaxed and natural softness. She moves with lightness and ease, embodying both innocence and quiet self-assurance. Her posture and expression evoke the feeling of a young idol in the early stages of her career—full of hope, sincerity, and playful brightness. Her overall aura is approachable, sincere, and emotionally vivid, like someone in her first year as a gravure model, posing with a touch of shyness and excitement. The table is made of clear glass.
考察：カラフルなマッサージ器とビキニの組み合わせは、まさに夏のビーチにぴったりな健康的でポップな雰囲気です。「布の使用を極限まで減らす」というプロンプトは、AIに「ビキニの面積を最小限に抑える」という明確な指示を与え、期待通りのルックを生成してくれました。
🦞 ロブスターを食べる配信者：白ビキニ＋透明テーブル
最後は、美味しそうにロブスターを食べていた彼女です。今回は、シンプルながらも洗練された白ビキニを選んでみました。
オリジナルプロンプト
A young Japanese woman is live streaming herself eating lobster. A smartphone mounted on a small tripod is recording her while she eats.
Remix用プロンプト
Under her shirt, she wears a triangle bikini that ties at the neck and back, designed to complement the vivid summer setting. The fit emphasizes her natural curves while maintaining a fresh and cheerful vibe. Reduce the use of cloth to the limit. She is an 18-year-old Japanese woman with a fresh, youthful presence that radiates cheerful energy. Her face is soft and expressive, with bright, slightly wide eyes and a gentle, photogenic smile. Her features suggest the lively charm of someone just stepping into adulthood—still touched by innocence, but with a natural grace and confidence. Her body has a smooth, softly curvy shape, with fair skin that glows under the sunlight. Her figure appears healthy and full, without sharp lines or visible ribs, giving her a relaxed and natural softness. She moves with lightness and ease, embodying both innocence and quiet self-assurance. Her posture and expression evoke the feeling of a young idol in the early stages of her career—full of hope, sincerity, and playful brightness. Her overall aura is approachable, sincere, and emotionally vivid, like someone in her first year as a gravure model, posing with a touch of shyness and excitement. The table is made of clear glass.
考察：「シンプルさ」と「特定の雰囲気」の両立を狙ったプロンプトです。食事という日常的なシーンに、ビキニという非日常的な要素を組み合わせることで、ユニークなコントラストが生まれました。プロンプトに「フレッシュで若々しい」といった感情的な言葉を多用することで、キャラクターの魅力を引き出すことができたように感じます。
まとめ
今回の水着回を通じて、Soraが単なる動画生成ツールではなく、非常に繊細な表現力を持ったクリエイティブな相棒であることが改めて分かりました。服装や質感、感情といった細かいプロンプトにしっかりと反応し、私たちが思い描く世界を映像として具現化してくれます。
あなたのSoraプロンプトは、どんな新しい世界を生み出しますか？ぜひコメントで教えてくださいね！
