
探偵の小夜神さんっ!
Create a dynamic track at BPM 150 featuring female vocals in a melodic singing style. The music should feel like the opening theme of a detective drama, blending J-Pop sensibility with energetic trance elements. The atmosphere is mysterious, stylish, and slightly dramatic, evoking investigation, tension, and confidence. Use a short cinematic intro (around 6 seconds) with arpeggiated synths and subtle suspense effects, then immediately bring in vocals. Verses should be rhythmically driven and focused, while choruses expand with uplifting trance chords and memorable J-Pop melodies. Use clean electronic drums, a steady trance bassline, bright synth leads, and wide pads to create momentum. The overall sound should feel modern, polished, and suitable for an anime or TV drama opening. Track length should be approximately 2 minutes and 30 seconds. Female vocals only.

探偵の小夜神さんっ!
Create a dynamic track at BPM 150 featuring female vocals in a melodic singing style. The music should feel like the opening theme of a detective drama, blending J-Pop sensibility with energetic trance elements. The atmosphere is mysterious, stylish, and slightly dramatic, evoking investigation, tension, and confidence. Use a short cinematic intro (around 6 seconds) with arpeggiated synths and subtle suspense effects, then immediately bring in vocals. Verses should be rhythmically driven and focused, while choruses expand with uplifting trance chords and memorable J-Pop melodies. Use clean electronic drums, a steady trance bassline, bright synth leads, and wide pads to create momentum. The overall sound should feel modern, polished, and suitable for an anime or TV drama opening. Track length should be approximately 2 minutes and 30 seconds. Female vocals only.
Lyrics
"You can read the English translation of the lyrics and the story that goes with them."
探偵の小夜神さんっ!
Detective Seiko!
[Verse]
私は探偵
小夜神聖子
全ての事件は
私におまかせ
三分以内で解決よ
ごめん、それはウソでした
ホントは一週間かかります
確実に犯人追い詰める
けして妥協しない
正義のためのジャッジメント
自分で言ってて意味分からん
[Chorus]
私は断言する
事件、完全解決
私は断言する
事件、全て解決
エレガントにジャッジメント
自分で言ってて意味分からん
[Verse]
私は探偵
小夜神聖子
この世の事件は
私にお任せ
三分以内で解決よ
ごめん、それはウソでした
ホントは一週間かかります
確実に証拠を突きつける
けして手を抜かない
愛のためのエクセレント
自分で言ってて意味分からん
[Chorus]
私は断言する
事件、完全解決
私は断言する
事件、全て解決
愛のためのエクセレント
自分で言ってて意味分からん
[Fadeout]
◇ ◇ ◇
『探偵 小夜神聖子』ストーリー
小夜神聖子(さよがみせいこ)は17歳。聖フェミリア高等学校に通う女子高生だ。だが、その正体は3歳から探偵の訓練を受けた天才女子高生探偵。有名探偵の小夜神零士(さよがみれいじ)の娘だ。ある日、聖子のもとに一人の男子高校生、原陽太郎(はらようたろう)がやってきた。待ち合わせ場所は喫茶店。陽太郎の彼女が失踪した。しかし陽太郎は小夜神零士がくると思っていたのに、17歳の女子高生が喫茶店に現れたものだから、超激怒。「女子高生の君に、僕の彼女の行方を見つけられるはずがないだろう!」聖子はピクリとも笑わない。無表情なのだ。陽太郎のイライラは頂点に達した。しかし聖子は言った。「あなたを救えるのは私しかいません。この探偵、小夜神聖子にお任せください」陽太郎は聖子の自信に驚いた。聖子は「私は事件を3分で解決します」と言い張る。「……ウソです、一週間以上かかります」聖子は天然ボケだった……。聖子の決め台詞は「エレガントにジャッジメント」「私は断言する!」好きな動物はゴールデンレトリーバー。好きな飲み物は紅茶。
◇ ◇ ◇
[English translation]
[Verse]
I’m a detective
My name is Seiko Sayogami
Every single case
You can leave it to me
I’ll solve it in three minutes flat
Sorry, that was a lie
Truth is, it takes about a week
But I’ll corner the culprit for sure
I never compromise
Judgment in the name of justice
Even I don’t know what I’m saying
[Chorus]
I declare it loud and clear
Case closed, completely solved
I declare it loud and clear
Every case, perfectly resolved
Elegant judgment
Even I don’t know what I’m saying
[Verse]
I’m a detective
Seiko Sayogami
Every case in this world
You can leave it to me
I’ll solve it in three minutes flat
Sorry, that was a lie
Truth is, it takes about a week
But I’ll present the evidence for sure
I never cut corners
Excellent in the name of love
Even I don’t know what I’m saying
[Chorus]
I declare it loud and clear
Case closed, completely solved
I declare it loud and clear
Every case, perfectly resolved
Excellent in the name of love
Even I don’t know what I’m saying
[Fadeout]
◇ ◇ ◇
Detective Seiko Sayogami – Story
Seiko Sayogami is seventeen years old. She is a high school girl attending St. Familia High School. However, her true identity is that of a genius teenage detective who has been trained since the age of three. She is the daughter of the famous detective Reiji Sayogami.
One day, a high school boy named Yotaro Hara comes to see Seiko. They meet at a café. Yotaro’s girlfriend has gone missing. He was expecting the legendary detective Reiji Sayogami to appear, but instead, a seventeen-year-old schoolgirl shows up. Furious, Yotaro shouts,
“There’s no way a high school girl like you can find my girlfriend!”
Seiko does not smile at all. Her face remains completely expressionless. Yotaro’s frustration reaches its limit. Then Seiko calmly says,
“The only one who can save you is me. Leave this case to Detective Seiko Sayogami.”
Yotaro is stunned by her confidence. Seiko insists,
“I will solve this case in three minutes.”
“…That was a lie. It will take more than a week,” she adds.
Seiko turns out to be adorably airheaded.
Her catchphrases are:
“Elegant Judgment,” and “I state this as a fact!”
Her favorite animal is the golden retriever, and her favorite drink is tea.
