Ooyuki (a Touhou LW original) refers to heavy snowfall. This is an apt temperament for Yuyuko, who adjusted her own temperament to gather spring. Yuyuko is endowed with Water Phase, the element of winter and death, and Wood Phase, the element of spring and resurrection. She ignores the three celestial Phases because the calendar has been distorted. The flexible and patient Water Phase resists Metal Phase, because metal collects water, but it is weak to Earth Phase, because earth directs water. The strong and kind Wood Phase resists Water Phase, because water nourishes wood, but it is weak to Metal Phase, because metal carves wood. The combination of Wood Phase and Water Phase cancels out any resistance or weakness to Metal Phase.

The ability of Yuyuko Saigyouji from the world with a never-ending winter (a Touhou LW original). There is no observable difference between this Yuyuko's ability and the abilities of the Yuyukos from other worlds. The circumstances that led to her becoming a ghost tasked with managing the Netherworld and the nature of her current position also seem to be identical. Yuyuko Saigyouji is the culprit and mastermind behind the Spring Snow Incident―the incident where Gensokyo's winter wouldn't end. This incident seems to be a necessary event in history that occurs in almost every world. As long as the world is not exceptionally divergent, Yuyuko will always cause this incident. That is her fate. The Spring Snow Incident is supposed to be an unusual incident because there are meant to be two conditions that could conclude it. Either Gensokyo regains its spring and Yuyuko's ambition is thwarted, or Yuyuko gathers enough spring and fulfills her dream to make the Saigyou Ayakashi bloom and awaken the being who sleeps beneath it. However, the incident is still ongoing in this Yuyuko's world, so neither of these conditions could have been met. Gensokyo hasn't regained its spring, Yuyuko hasn't gathered enough spring, and the incident continues. How could this situation possibly be sustained for any length of time? The answer appears to lie in how this Yuyuko Saigyouji says she needs just a little more spring, but the Saigyou Ayakashi will not bloom no matter how much spring she gathers. This is like an object trying to approach the speed of light. Or the paradox with Achilles and the tortoise. So close, yet eternally distant. However, the question remains whether or not this situation could arise solely through the intent of the ghost, Yuyuko Saigyouji.