On February 24, Isetan Mitsukoshi Holdings announced its basic strategy for its small- and medium-sized store business and specific future store opening plans. In mid-June, the company will open the "Isetan Haneda Men's Store No. 2 (tentative name)" (approximately 450 square meters) in the departure gate lounge on the second floor of Haneda Airport's domestic passenger terminal 2. The first store opened in Terminal 1 in April 2012, and the second store will follow a similar concept. Aimed primarily at businessmen traveling domestically and internationally and men enjoying vacations, the store will offer a selection of men's goods and food and beverages. Also, this summer, the company plans to open its first women's store, the "Isetan Haneda Women's Store (tentative name)" (approximately 500 square meters) in the south wing of the departure gate lounge on the second floor of Terminal 1. Drawing on the know-how cultivated in the men's store, the store will propose merchandising that incorporates the latest fashion trends on the women's floor of the Isetan Shinjuku store, which promotes the concept of "the world's greatest fashion museum." The store will be designed to resemble a woman's dressing room, with a focus on women's accessories and clothing, as well as a cafe and nail salon.

Luxury cosmetics retailer Isetan Mirror will open three new stores this spring. The LaLaport TOKYO BAY store (approximately 154 square meters) and Kinshicho Terminal 2 store (approximately 130 square meters) will open on March 14, followed by the Atre Oimachi store (approximately 92 square meters) on March 19. In addition to luxury cosmetics, the new stores will also offer natural cosmetics such as Jurlique and John Masters Organics. The Kinshicho Terminal 2 store in particular will offer a selection of popular natural brands, as well as a new lineup of hair accessories, offering a total beauty solution.

In parallel with its expansion into multiple stores, Isetan Mirror began creating original merchandising in September 2012. The company also started a wholesale business in September 2013, and will launch new miscellaneous items such as pouches and tote bags in March 2014.

In addition, MI PLAZA, which offers a selection of products centered on everyday food and miscellaneous goods, is opening stores in new areas and replacing existing satellite stores and changing the merchandising at three stores. On March 17th, it opened a new store, the Yamagata Store (1st floor, Yamako Building, 3-2-1 Kasumi-cho, Yamagata City, Yamagata Prefecture, approximately 430 square meters). The events will be held at the Yukarigaoka store on March 19th (1st floor of Yukari Plaza, 4-1-4 Yukarigaoka, Sakura City, Chiba Prefecture, approximately 350 square meters), the Joetsu store on March 22nd (26-gai-2, Sekigawa Higashi Shimomonmae Land Readjustment Area, Joetsu City, Niigata Prefecture, approximately 430 square meters), and the Amuse Atsugi store on April 26th (1st floor of Amuse Atsugi, 2-12-15 Nakamachi, Atsugi City, Kanagawa Prefecture, approximately 270 square meters).

In the fall of 2013, MI Plaza opened its first store in Kawabe-cho, Ome City, Tokyo, an area where there is a need for a department store but no nearby department store. As a business model that differs from traditional small satellite stores, the store targets customers living within a 2km radius and proposes merchandising tailored to the season, seasonal events, and occasions.

In 2015, Isetan Mitsukoshi Holdings announced the opening of its first select store in the commercial zone of the Dai Nagoya Building, and aims to establish an efficient chain operation system through rapid expansion of multiple stores, including new formats such as medium-sized select stores currently under development.