At the top of the Illustration Style image, Happy 18th

Hand-drawn illustration with fine linework and textured brush strokes, warm expressive palette (sunset golds, peach, coral, and deep maroon shadows). Scene: A whimsical, old Japanese school bathroom corridor. Center frame, Toilet-Bound Hanako-kun pops cheekily out from a slightly ajar stall door, grinning, in his black school uniform and round cap with the seal charm. His two haku-joudai float like party balloons wearing tiny cone hats, one shaped like a “1” and the other like an “8.” Toilet paper streamers drape like bunting, confetti flutters, and a plunger is held like a microphone. On the closed toilet lid sits a small birthday cake with ghost-flame candles forming “18,” sparklers fizzing softly. Subtle paper-talisman charms on the stall, glossy tiles catching warm overhead light, soft watercolor textures and balanced composition with generous breathing room around the character. Playful motion lines and tiny star sparkles for comedic energy. Add a small, hand-lettered caption at the bottom: “May your day be flush with un-boo-lievable fun!”

Generated with these themes: Toilet-Bound Hanako-kun , and .

Made with ❤️ by AI.