Hakui Koyori - Anime Inflatable Cylinder Pillow Fan-Art Edition

1: Artistic Concept – The Brain of holoX

Step into the world of hololive with this exclusive inflatable cylinder pillow featuring the brilliant and curious Hakui Koyori — the self-proclaimed “brain” of the Secret Society holoX! As a dedicated researcher, Koyori is always observing human behavior and caring for her fellow holoX members with a mix of kindness and mischief. Her insatiable thirst for knowledge drives her experiments, though she may sometimes mess with people just to see how they react . Her appearance is defined by long, flowing wavy pink hair styled in a distinctive crown braid that turns into double braided buns, with sidelocks, choppy bangs and signature antenna hair . Her purple-pink gradient eyes sparkle with the curiosity of a true researcher, while her coyote ears and tail add an endearing wild charm. She wears her iconic white lab coat with a black leotard, black thigh-highs, and a red necktie — a look that perfectly blends her scientific persona with VTuber flair . Our artists have meticulously rendered every detail — from the delicate texture and highlights of her pink hair and the luminous gradient of her eyes to the intricate folds of her lab coat and the playful curvature of her coyote ears — using High-Fidelity (Hi-Fi) precision. This studio-grade design is a heartfelt tribute to the passionate researcher and “streaming monster” of hololive, perfect for fans who admire Koyori’s boundless energy, brilliant mind, and unforgettable charm.

2: The Collector‘s Standard – Elevated Comfort in Cylinder Form

Enjoy a full-body embrace with the generous 170cm × 52cm (approx. 67” × 20.5") size—delivering an even longer and slightly wider surface than the traditional 160cm standard for a more immersive snuggling experience. The cylindrical shape is ergonomically designed to fit naturally against your body, whether you hug it, rest your head on it, or use it as back support during late-night streams or anime marathons. The extended length ensures Koyori‘s full character art is displayed with perfect proportions—from the tips of her flowing pink hair and coyote ears to the hem of her lab coat—giving you a Collector-Grade canvas that maximizes both visual impact and physical comfort during your rest or leisure time.

3: The Material – Innovation Meets Durability

Premium PVC – Sturdy & Portable: Crafted from high-quality, phthalate-free PVC, this inflatable cylinder pillow offers a unique blend of durability and lightweight convenience. It is waterproof, easy to wipe clean, and remarkably resilient, making it ideal for daily use, travel, camping, or even as a quirky pool float. The smooth surface feels cool to the touch, and you can easily adjust the air pressure to achieve your preferred firmness—from soft and pliable to firm and supportive. Weighing just 0.6kg, it deflates to a compact size, so you can take the “brain of holoX” with you wherever you go, ensuring comfort is never out of reach.

4: Why Choose Us?

• Studio-Grade VTuber Art: We pride ourselves on Studio-Exclusive creativity. This design is a Professional Rendering from our studio, honoring Hakui Koyori‘s iconic lab coat look and brilliant researcher persona in a fresh, captivating composition.

• 10,000+ Pixel Resolution: We use ultra-high-definition master files to ensure that even the smallest details—like the delicate patterns on Koyori’s lab coat, the gradient of her eyes, and the playful curve of her coyote ears—are crystal clear and vibrant.

• Heat-Sealed Seams & Reinforced Valve: Our cylinder pillow features robust, heat-sealed seams that guarantee superior air retention and prevent leaks, along with a recessed, leak-proof valve for easy inflation and deflation without snagging.

• Discreet Global Shipping: We respect your privacy. All orders are sent in plain, neutral packaging with no character or series names on the exterior labels.

“This is a fan-inspired creative work. We do not claim ownership over the original character or franchise rights.”