最近では、AI画像生成ツールを使って、イメージ通りのビジュアルを簡単に作れるようになりました。特に「人物が2人以上いる写真」を生成したいとき、ちょっとした工夫を加えるだけで、自然でリアルな表現が可能になります。

今回は、複数人の人物を含むAI画像を効率よく作成するためのプロンプトの書き方について、事例を交えながら紹介します。

★★宣伝★★

このアカウントではプロンプト販売のnoteもありますが､基本的にこの無料noteの考え方を使っています｡
わざわざ買わなくてもnoteを読めばプロンプトを作れるようになるはずです！

それでも手っ取り早くプロンプトだけ知りたい人は買ってもいいですよ｡

★★宣伝終了★★

共通情報を入れる

最初に、画像全体のシチュエーション（場所や雰囲気）を設定しましょう。

例えば、
2persons. indoor, in a lobby of hotel.
(2名。ホテルのロビーにて。)

2persons. indoor, in a lobby of hotel.

と書けば、「ホテルのロビーに2人の人物がいる室内シーン」がベースになります。

このように、人数・屋内外・場所を明記することで、AIはより具体的なシーンをイメージしやすくなります。

登場人物を「personA」「personB」で分けて書く

次に、人物ごとに「personA」「personB」などラベルをつけて、それぞれの情報を記述していきます。服装や動作、表情などを細かく設定すると、よりリアルな画像になります。

名前ではなく「personA」「personB」とラベリングすることで、AIが混乱せずに認識してくれます。

男女のペアを作る

2persons. indoor, in a lobby of hotel.

personA: A Japanese young woman laugh.
The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young man(Age of twenty) smile.manA is wearing a white a light-colored Tshirt and dark red parka.

2persons. indoor, in a lobby of hotel.

personA: A Japanese young woman laugh.The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young man(Age of twenty) smile.manA is wearing a white a light-colored Tshirt and dark red parka.

登場人物のパターンを変えてみる

同じシチュエーションでも、人物の性別や服装を変えるだけで印象は大きく変わります。

女性同士に変更

2persons. indoor, in a lobby of hotel.

personA: A Japanese young woman laugh.
The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty) smile.personB is wearing a white button shirt.

2persons. indoor, in a lobby of hotel.

personA: A Japanese young woman laugh.The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty) smile.personB is wearing a white button shirt.

室内シーンに変更

ホテルの室内にしてみる｡

2persons. indoor, in a room of hotel.

personA: A Japanese young man laugh.
The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty) smile.personB is wearing a white button shirt.

2persons. indoor, in a room of hotel.

personA: A Japanese young man laugh.The person is wearing a dark jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty) smile.personB is wearing a white button shirt.

屋外シーンや髪型の変更も試してみよう

AI画像生成の魅力は、簡単にパターンを変えられること。場所や髪型などの要素も、プロンプトに加えるだけでOKです。

公園でのシーン

2persons. outdoor, in a park.

personA: A Japanese young woman laugh.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty) smile.personB is wearing a black button shirt and Backpack.

2persons. outdoor, in a park.

personA: A Japanese young woman laugh.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty) smile.personB is wearing a black button shirt and Backpack.

髪型を指定する

髪型・髪色を指定すると、より個性のある人物が生成されます。

2persons. outdoor, in a park.

personA: A Japanese young woman laugh.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

2persons. outdoor, in a park.

personA: A Japanese young woman laugh.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

応用編：より「リアルな写真風」に仕上げる工夫

以前解説した【ImageFXでリアルな写真を作る方法と考え方】を使ってさらに自然な写真を作って行きます｡

背景情報を充実させて､【amateur photo.】を追記

amateur photo. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.

personA: A Japanese young woman laugh.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

amateur photo. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.

personA: A Japanese young woman laugh.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

【amateur photo.】を【Instagram.】に変更

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.

personA: A Japanese young woman laugh.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.

personA: A Japanese young woman laugh.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

桜を咲かせてみる【Cherry blossoms are in bloom.】を追記

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile.personB is wearing a black button shirt and Backpack.

座らせてみた｡それぞれの人物に【sitting.】を追記

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting.personB is wearing a black button shirt and Backpack.

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting.personB is wearing a black button shirt and Backpack.

レジャーシートに座らせる【 sitting on picnic sheet.】を追記｡

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting on picnic sheet.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting on picnic sheet.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

缶ビールを持たせる【drink can beer】を追記

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting on picnic sheet and drink can beer.
The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.
personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

Instagram. 2persons. outdoor, in a park. There are benches in the background and a few people walking around.Cherry blossoms are in bloom.

personA: A Japanese young woman laugh and sitting on picnic sheet and drink can beer.The person is wearing a light color jacket over a light-colored shirt, holding a bag with one.personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

発展編①：3人以上の人物も自然に配置できる

2人の人物を使ったプロンプトに慣れてきたら、3人以上の構成にもぜひ挑戦してみましょう。
基本的なルールは同じで、「personA」「personB」「personC」…と順番に人物を追加していくだけです。

例：カフェでおしゃべりする3人の友人

amateur photo. Instagram. 3persons. indoor, in a cozy cafe in Tokyo. The background has wooden tables, green plants, and a warm light atmosphere.

personA: A Japanese young woman (Age of 20, medium-length black hair) laugh. She is wearing a white knit sweater and holding a coffee cup with both hands.

personB: A Japanese young man (Age of 21, short black hair) smile. He is wearing a brown hoodie and leaning slightly forward, listening to others.

personC: A Japanese young woman (Age of 22, long straight brown hair) talking. She is wearing a beige coat and holding a smartphone.

amateur photo. Instagram. 3persons. indoor, in a cozy cafe in Tokyo. The background has wooden tables, green plants, and a warm light atmosphere.

personA: A Japanese young woman (Age of 20, medium-length black hair) laugh. She is wearing a white knit sweater and holding a coffee cup with both hands.

personB: A Japanese young man (Age of 21, short black hair) smile. He is wearing a brown hoodie and leaning slightly forward, listening to others.

personC: A Japanese young woman (Age of 22, long straight brown hair) talking. She is wearing a beige coat and holding a smartphone.

🖼 カフェでおしゃべりしている3人の友人。自然光と笑顔が良い雰囲気！

人数が増えると、シーン全体の構図や関係性に奥行きが出てきます。
背景に「観葉植物」や「木のテーブル」などの要素を加えることで、より写真らしい仕上がりになります。

ただし､人物の配置に違和感が出たり､背景のボケ感が強くなることがあります｡

発展編②：人物＋ペットの組み合わせも自然に作れる

AIプロンプトでは、人物だけでなく犬や猫などの動物も一緒に登場させることが可能です。
中でも、人物2人＋犬2匹の組み合わせは、まるで休日に撮ったスナップのような、リアルで心温まる写真になります。

例：カップルと2匹のワンコがお花見しながら散歩中のシーン

amateur photo. Instagram. 2persons and 2dogs. outdoor, in a park during spring. Cherry blossoms are in bloom. There are benches in the background and a few people walking around.

personA: A Japanese young woman (Age of 24, long black ponytail) smile and walking. She is wearing a denim jacket over a white dress and holding a leash.

personB: A Japanese young man (Age of 25, short brown hair) laugh. He is wearing a beige hoodie and jeans, and also holding a leash.

dogA: A small white fluffy dog (toy poodle) walking beside personA.

dogB: A golden retriever with a red collar walking beside personB.

amateur photo. Instagram. 2persons and 2dogs. outdoor, in a park during spring. Cherry blossoms are in bloom. There are benches in the background and a few people walking around.

personA: A Japanese young woman (Age of 24, long black ponytail) smile and walking. She is wearing a denim jacket over a white dress and holding a leash.

personB: A Japanese young man (Age of 25, short brown hair) laugh. He is wearing a beige hoodie and jeans, and also holding a leash.

dogA: A small white fluffy dog (toy poodle) walking beside personA.

dogB: A golden retriever with a red collar walking beside personB.

🐕 公園でワンコと一緒にお散歩中のカップル。春らしい桜背景も◎！

• 「2persons and 2dogs」と書くことで、AIが人物と犬をそれぞれ正しく認識しやすくなります。

• 犬にも 大きさ・色・犬種などの特徴を明確にすると、画像の完成度が上がる

• 人物と犬の関係性（「leash」「walking beside」など）を書くと自然に配置されやすい

まとめ：プロンプトで自由自在にシーンを操ろう！

AIイラスト生成は、プロンプトひとつで写真の世界観が自由に変化します。

ポイントは以下の通り：

• 最初に場所・人数を決める

• 人物ごとに詳細な特徴を指定する

• 細かい要素（髪型・動作・小物・背景）を積み重ねる

この流れさえ押さえれば、まるで自分で撮ったかのようなナチュラルな写真が作れます。

プロンプト作成に慣れてきたら、ぜひ【3人以上】や【動物との組み合わせ】にもチャレンジしてみてください！

おまけ

🤳. Instagram. 2persons. outdoor, in a park. There are benches in the background and a few humanoid robot walking around.Cherry blossoms are in bloom.night.

personA: A humanoid robot sitting on picnic sheet.

personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

🤳. Instagram. 2persons. outdoor, in a park. There are benches in the background and a few humanoid robot walking around.Cherry blossoms are in bloom.night.

personA: A humanoid robot sitting on picnic sheet.

personB:A Japanese young woman(Age of twenty, brown long wave hair) smile and sitting on picnic sheet. personB is wearing a black button shirt and Backpack.

📌 この記事が役立ったと思ったら「スキ ❤️」やシェアをお願いします。
コメントもお気軽にどうぞ！

超おまけ（メンバーシップ特典）

上3枚の画像のプロンプトを紹介します｡