Mac House Co., Ltd. (7603.T) is a Japan-based retailer that operates chain stores specializing in casual clothing and accessories nationwide; it offers men's, women's, and children's apparel, footwear through retail and wholesale channels, lifestyle goods, and online sales platforms. Founded in 1990 and headquartered at Shin-Koenji Twin Building in Tokyo's Suginami Ward, the company serves consumer discretionary markets primarily in Japan with approximately 260-290 employees and functions as a subsidiary of Chiyoda Co., Ltd. until recent shifts in ownership. In November 2024, G Future No.1 Fund L.P., managed by Trust Up Co., Ltd., completed the acquisition of a 65% stake from Chiyoda Co., Ltd. and others at JPY32 per share, marking a major change in control structure; additionally, the company plans to change its name to Gyet Co., Ltd. effective September 18, 2025, pending shareholder approval at the extraordinary general meeting on September 17, 2025, as part of a strategic evolution toward global growth, new business development including investments, brand management, crypto assets, AI solutions, and venture acquisitions.