HAYAKAWA FACTORY is Hayakawa Publishing's official merchandise label, with the brand concept of "Timeless masterpieces with futuristic designs." A collaboration product between Yu Er's publisher, Sozokan Co., Ltd., which publishes the Kowloon Walled City trilogy, and HAYAKAWA FACTORY, Hayakawa Publishing's official merchandise label, has been released. The fan, with a design inspired by the world of Yu Er's Kowloon Walled City trilogy, is a must-have item for fans of the series. The fan's base color, ribs, and pivot are a chic black, with striking red and matte gold prints. The engraved "Longcheng" refers to the Longcheng Gang, which wielded power in the underworld from the 1960s to the 1970s, led by Tatsumaki Feng. The black box has a luxurious gold foil stamping, making it perfect as a gift. Design: Faminik @ Creation Cabin Format: Double-sided paper fan, 7.5 inches, 25 ribs Materials: Paper, bamboo (fan frame), iron (pivot)