From the iconic Hoshino Ai B Komachi outfit to the unique stage and casual looks of other characters, Oshi No Ko cosplay allows you to channel the charm, sparkle, and emotional depth that make the series so compelling.

In this guide, we’ll share 10 essential tips to help you create stunning Oshi No Ko costumes and truly embody your favorite characters.

1. Choose Your Character Carefully

Start by deciding which character you connect with most. The series features memorable characters such as:

• Hoshino Ai: The radiant idol with her famous B Komachi outfit.
• Ruby Hoshino: Ai’s daughter who shares her idol dreams.
• Aqua Hoshino: The determined brother on a mission.
• Kana Arima: A talented actress turned idol.

Knowing your character helps guide your costume, props, and even posing style.

2. Get the Outfit Right

Accuracy is key in Oshi No Ko costumes, especially for idol outfits. The Hoshino Ai B Komachi outfit features:

• A bright and colorful idol dress with star motifs.
• Puffy skirt layers and ribbon accents.
• Arm cuffs, gloves, and matching boots.

Look for high-quality fabric and detailed tailoring to match the anime’s polished, sparkly aesthetic.

3. Use a Quality Wig

Hair plays a huge role in anime character design. Invest in a high-quality wig that matches your character’s color and style exactly.

• Ai’s pastel pink hair with curled ends and signature star accessories is instantly recognizable.
• Kana’s deep red hair or Ruby’s twin tails should be styled to perfection.

4. Focus on Makeup

Anime characters have big, expressive eyes and flawless skin. Use makeup to capture this look:

• Choose circle lenses to make your eyes appear larger.
• Use eyeliner to mimic anime-style eye shapes.
• Apply highlighter and blush for a bright, idol-like glow.

5. Add Signature Accessories

Don’t skip the small details that make your cosplay pop. For Ai, her star-shaped hair clip and microphone are essential. For Ruby, a handheld light stick or fan merchandise adds a fun touch. These details make your costume more authentic and photo-ready.

6. Practice Character Poses

Idol characters like Ai and Ruby have specific on-stage gestures and expressions. Watch performances and promotional art to learn poses that capture each character’s personality. Practicing in front of a mirror helps you look confident and natural in photos.

7. Use Props to Tell a Story

Props add depth and context. For example:

• Microphones and stage lights for idol performances.
• Fan signs or glow sticks for group shots.
• A script or acting trophy for Kana Arima.

These items help set the scene and make your cosplay even more engaging.

8. Choose the Right Footwear

Many Oshi No Ko costumes include boots or platform shoes. Comfort is crucial if you plan to wear them all day at a convention. Invest in gel inserts and practice walking in them before the event.

9. Consider Group Cosplay

Oshi No Ko is perfect for group cosplays. Gathering a full B Komachi lineup or the entire Hoshino family makes your group stand out and creates amazing photo opportunities. Coordinate colors, poses, and props to make your group look cohesive.

10. Stay True to the Character

Beyond visuals, what makes Oshi No Ko cosplay special is embodying the spirit of the characters. Ai’s radiant energy, Ruby’s determination, and Kana’s confidence all shine through in the way you move and interact with fans. Watch scenes, study lines, and practice small mannerisms to fully bring your favorite idol to life.

Final Thoughts

Cosplaying as an Oshi No Ko character is a wonderful way to celebrate this beautiful and emotional series. Whether you choose the bright and unforgettable Hoshino Ai B Komachi outfit or another character’s look, focusing on accuracy, expression, and detail will make your cosplay stand out.

Ready to sparkle like an idol? Start designing your Oshi No Ko costume, gather your props, and prepare to shine on the cosplay stage. Your fans are waiting!