The main star of this work is Koharu Saku! A charming and attractive 20-year-old beauty with a beautifully refined face and slender figure. Her mysterious presence and strangely unsettling beauty perfectly enhance the world of Russian quarter. She has been practicing classical ballet since childhood, boasting an incredibly flexible body capable of perfect Y-shaped balances. Though initially a bit uneasy about the props and foam used in the scenes, she left a strong impression by genuinely smiling and enjoying the shoot. She mentioned, "I'm happy that people can see me dressed up cutely, unlike my usual self." Here, the unique beauty of quarter heritage is perfectly captured—where Japanese gentleness meets Russian elegance.