Hakubo (a Touhou LW original) refers to the twilight sky that appears after sunset. This is an apt temperament for Ringo, an inhabitant of the enormous Capital that follows a singular fate. Her original temperament has been changed beyond recognition by the great systems of the Capital. This temperament is specialized to solely resist Earth Phase.

The ability of Ringo from the Capital (a Touhou LW original). Her ability doesn't appear to be any different from the usual Ringo. There are many mysteries surrounding it, but in terms of function, it may be among the easiest to understand. It's well known that the moon rabbits pound mochi to account for the crimes of Chang'e, who is imprisoned. However, they also make dango to eat. Mochi and dango are similar, but the former is made by pounding steamed mochi-rice and forming it into balls, while the latter is made by kneading rice flour with water. Since long ago, a pair of tools resembling a pestle and mortar called a "kine" and an "usu" have been used to grind rice into rice flour in a process similar to that of making medicine. Methods for making hard ingredients edible such as grinding and infusing have existed since ancient times. They are so old that, in China, they have strong ties to the concept of divine power. Elements of ancient magic can be found in the making of dango. This world's Ringo and Seiran go way back. They may even be best described as childhood friends. And for them, eating dango takes them back to when they were children. Fate set them on separate paths after a certain incident that occurred while they were both attending moon rabbit training academy. Seiran began a career as a blue-class investigator, while Ringo wandered astray. Some time later, Ringo became a yellow-class investigator. Due to the difference in their training periods, Ringo was the first to start work as an investigator. The two reunited when Seiran was assigned as Ringo's subordinate, their relationship still broken in two. The inhabitants of the Capital and the surrounding cities are known as "sisters," with the majority of them being moon rabbits. They are also sometimes referred to as "capital folk" or "city folk," respectively. In accordance with certain standards, all moon rabbits are assigned a color, with each color representing a social class and a set of rights. All the rights in the Capital are managed and determined by colors. Your color determines your school and profession, the types of food and products available to you, the quality of your daily goods and tools, as well as what information you have access to. Colors are what maintain order in the Capital. The colors are split into seven classes based on the colors of a rainbow. In order from lowest social standing to highest: Red, Orange, Yellow, Green, Blue, Indigo, Purple. Ringo is "Yellow: Tachibana," and Seiran is "Blue: Asagi." Reisen was originally Sky Blue (class unknown), but fell to "Red: Peach."