"探偵作戦" es una ilustración de portada tipo tarjeta de título, en estilo de dibujos animados de Halloween. Los cuatro caracteres van en una sola línea, con letras de slime goteante en naranja, verde, morado y naranja, con gruesos contornos negros, sobre una calle iluminada por la luna con un gato negro tras una valla y una lupa. Recréala con tu propio título, cambiando las palabras del titular, los colores del slime y los pequeños objetos para tu juego o evento.

Square-format illustrated Halloween detective scene, designed like a playful mystery-game cover. Center the exact text "探偵作戦" as one large, clean four-character title on a single line, with generous clear space around every character and the quotation marks fully visible. Place it against a deep midnight-indigo sky fading into a quiet violet cobblestone street, framed by crooked candy-colored townhouses in the far background. A small detective-office window glows warm amber on the left, while a striped awning and a closed pumpkin-orange door sit softly out of focus on the right. Below the title, a magnifying glass, tiny clue cards, a curled map, and two scattered wrapped candies rest on the pavement, kept low and secondary. A friendly black cat silhouette peeks from behind a distant fence, its eyes two subtle lime-green points. Thin mist pools close to the ground without touching the title area. Use a soft moon halo behind the upper background, warm window pools across the street, and restrained purple-and-green atmospheric accents. Keep the center bright, uncluttered, and legible; the environment acts as a whimsical detective frame, not competition.