GAACAL, a brand operated by ai boww Co., Ltd. that supports women working hard in both their careers and private lives, has begun taking preorders today for collaboration items featuring Shirotan and Sanrio Characters from Sanrio Co., Ltd. This collaboration combines Shirotan’s gentle, soothing world with the charm of Sanrio Characters, offering a lineup of practical gadget items that fans will want to carry every day. Designed around the lifestyles of working women, it is a limited GAACAL collection that brings together cuteness and convenience. The lineup includes functional and stylish items such as mobile batteries useful when commuting or going out, as well as Type-C earphones suited for everyday use. Simply keeping them in a bag adds a lift to the day and brings a subtle touch of excitement to everyday moments. The special Shirotan x Sanrio Characters items are available only from GAACAL. Sales channel: GAACAL official online shop https://gaacal.com/collections/shirotan-characters Available in Japan only. Estimated delivery: from late July 2026 onward Product lineup, tax included: 1. Handmade smartphone cases, 4 designs, ¥3,280: Handmade cases featuring Shirotan x Sanrio Characters designs. Customers can choose from four types, including designs with a sparkling shell-like base and subtle rhinestone accents, as well as practical mirror versions. Compatible models: iPhone 15 / iPhone 16 / iPhone 17. 2. Slim 3-in-1 mobile batteries, 4 designs, ¥6,980: Multifunctional batteries that can wirelessly charge an iPhone, Apple Watch, and AirPods via MagSafe. The slim, lightweight design measures 8.9mm thick and weighs about 110g. With 5000mAh capacity, it can charge a smartphone about once. It includes protective circuits against overheating, short circuits, overvoltage, and overcharging. USB-C output up to 20W, supports charging two devices at the same time, and is PSE certified. 3. Canal-type Type-C wired earphones with storage pouch, 5 designs, ¥2,580: Metal housing