On December 5th, ESCADA held a Christmas party at the Grand Hyatt Tokyo in Roppongi. Nanao appeared as a guest model for the Spring/Summer 2015 women's collection show.

At the talk show held before the party, Nanao appeared in a plunging black ESCADA suit. The lustrous rayon crepe with a large botanical print exuded a feminine and alluring aura. ESCADA fashion director Daniel Wingate commented, "Japanese women love flowers, and this season's theme, 'botanical beauty,' is the epitome of that." Next, Nanao wore a soft scarf, a Christmas gift from Serok Lee, CEO of ESCADA Japan and ESCADA Korea. Based on a vibrant color palette of various shades of pink, vitamin orange, and purple, evocative of the brand's "Love of Color" identity, the collection featured prints inspired by various plants, embroidery, and lace evoking blooming flowers, creating an exotic and romantic mood that brought the splendor of spring. Botanical elements were expressed in a variety of ways, including a long lace dress seemingly covered in small flowers, a mini dress draped in various sizes of jewels from the shoulders to the chest, and an opal-finished dress and lightweight coat. This season's offering also featured bold pieces, such as a leopard print blouse with a botanical print layered over it, and styling print pieces together. Finally, Nanao strutted down the runway in a tulle top embellished with glittering beading and a long dress with ample volume at the hem, creating an elegant silhouette. Collection model Mona Matsuoka and model and talent Hikari Mori also made appearances during the show.

Other industry figures who attended the venue, including Hayami Yuu, Anmika, and Kanda Uno, also dressed up, making for a glamorous night of partying.