On February 17th, Isetan Mitsukoshi opened the SEKItoWA shop, its original "Japan Premium Brand," in the men's zone on the first floor of the main building of the Nihonbashi Mitsukoshi Main Store. Also on the same day, Gallery LIFE MINING, a shop promoting "Japanese lifestyle beauty and culture," opened on the fifth floor living area of the store. The newly debuted SEKItoWA (=product and sum) is derived from "seki" (product, the answer to multiplication) and "wa" (harmony, the answer to addition). The shop will offer products that add color to your life with "fresh aesthetics and excellent usability" born from the interplay of the craftsmen's skills and aesthetic sense. The products on offer are based on two themes: "Elegance (of Kyoto)" and "Edo Style (of Edo)." The symbolic theme for "Miyabi" in 2016 is "gold leaf," and by combining gold leaf craftsman Hiroto Rakusho with traditional crafts, clothing, and lifestyle goods, the brand will propose items such as an Asahiyaki mug (23,000 yen), a Nakagawa Mokkogei champagne cooler (300,000 yen), and a sake cup (49,000 yen). On the other hand, the symbolic theme for "Iki" is "indigo dye," and will release sneakers (160,000 yen), a card case (16,000 yen), and denim pants (39,000 yen) made from indigo-dyed leather called Sukumo leather.

Yoji Naka, general manager of Mitsukoshi Nihonbashi Main Store, commented, "We want to aim to be a department store that delves deeply into everything (as expressed by Sekitowa). It's not a department store that has everything, but one that goes very deep into what it has. That's the kind of department store we want to create. Sekitowa is one example. Japanese products are at a luxury level or even higher in the world. We want to disseminate such products from here."

Gallery LIFE MINING, which opened on the 5th floor, is divided into four themes: "Omotenashian," "Japan Luxury," "Pygmalion Shop," and "A Store with a Fondness for Playfulness," and will propose tools and crafts for everyday life, tailored to styles and scenes. The "Omotenashian" zone is themed around local culture and offers products necessary for "hospitality," such as food and tableware, room etiquette, and interior design that have been cultivated in accordance with the local climate, along with customs and practices related to the seasons and seasonal events. The "Japan Luxury" zone offers items that elevate everyday crafts that have been nurtured by Japan's unique lifestyle, culture, seasons, seasons, and climate, and have been carefully made by artisans, into luxury brands from Japan that can be proud of around the world. The "Pygmalion Shop" is a zone that discovers the next generation of artisans active in Japan, as well as lesser-known production areas and manufacturers with excellent skills, and supports the preservation and inheritance of traditional culture while also supporting new possibilities. The "Play and Hobby Shop" is themed around play and hobbies and features a wide selection of products that will satisfy everyone from amateurs to professionals. From February 17th to March 15th, the zone will host an exhibition titled "Decorating Flowers, Arranging Flowers." This exhibition will feature approximately 300 vases and other items for arranging flowers at home, regardless of material, shape, or size, including glass, ceramics, wood, and metalwork. These include one-of-a-kind and highly rare pieces by artists, such as Kentaro Senuma's cup-shaped glass vase (¥50,000), a water spring (¥50,000), and a Zwiesel vase (¥19,400 including tax). Also, on March 30th, a permanent corner for "TOKYO Teshigoto," a project run by the Tokyo Metropolitan Small and Medium Enterprise Support Center, which promotes Tokyo's traditional crafts both domestically and internationally, will open within Gallery Life Mining. Items for sale include Edo Kiriko glassware, Tokyo silverware sake sets, Tokyo cloisonné rings, Edo sarasa handkerchiefs, tenugui hand towels, and Tokyo Teue Brush clothing brushes.