Tenkyuu (a Touhou LW original) refers to rain falling from a cloudless sky. This is an apt temperament for the great youkai who can manipulate any boundary. Yukari is endowed with Earth Phase, because she accepts everything, and Sun Essence, as an overseer of Gensokyo. The encompassing and regenerative Earth Phase resists Fire Phase, because fire produces earth, but it is weak to Wood Phase, because wood parts earth. The alluring and arrogant Sun Essence resists the diverse and uncooperative Star Essence, but it is weak to the cooperative and indecisive Moon Essence.

The ability of Yukari Yakumo from the world with a never-ending winter. This ability seems to be identical to the abilities shared by the standard Yukari Yakumos of other worlds. This Yukari knows this too. However, she doesn't speak much about her ability, and when she does, she usually evades any questions by providing unverifiable answers. Thus, it is doubtful whether anything known about this ability is actually true. It is thought that the prolonged incident in this Yukari's world was originally the same as the Spring Snow Incident that was recorded in a certain text. In this incident, winter did not end in Gensokyo, and an unnatural amount of spring was gathered in the Netherworld. It probably took a while for people to realize that spring hadn't arrived, so it can be presumed that the original incident also lasted for some time. Of course, like most incidents, it was resolved pretty quickly once the humans found out about it. More information about the original incident can be found in a different report. At the time when this incident was occurring in our world, Yukari Yakumo still hadn't declared herself to be the Youkai Sage. However, she was already a genuine sage who helped create Gensokyo. And she was still a great youkai in charge of managing the Great Hakurei Barrier with a deep connection to both Reimu Hakurei and Hakurei Shrine. Perhaps the reason why she spoke to Reimu in such a standoffish manner despite all of this was her taking into account the relationship between humans and youkai. Right after this incident, youkai began to visit Hakurei Shrine regularly, so she didn't have to take that stance any longer. The Yukari of our world is famous for sleeping 12 hours a day and hibernating in winter, but it appears this Yukari sleeps even more. It is unknown if the incident caused this or not, but the long winter in Gensokyo would suggest a long hibernation. And since spring is the perfect season for sleeping in late, the extended spring in the Netherworld may have also affected Yukari. However, now that the Dream World has been revealed, there are doubts about whether Yukari is truly inactive during sleep or not. If she does act through dreams, that may explain why she sleeps for so long. Perhaps the Ruler of Dreams could shed some light on this. Even though Yukari Yakumo is Yuyuko's best friend and manages the Barrier of Life and Death and the Great Hakurei Barrier, it seems she only found out about the Spring Snow Incident after Yakumo Ran was defeated in battle. However, in the world where this incident was prolonged, she woke up and started making every effort to understand what was happening. This incident should end when enough spring has been gathered or when gathering enough spring is not possible. The Yukari Yakumo of this world suspects that the reason why this incident hasn't ended lies not with Yuyuko, Youmu, or the Saigyou Ayakashi but from some other interference. As she was deliberating about giving Reimu a hand or not, she started getting worried when lots of people, who should not be in Gensokyo yet, started appearing while the incident was still ongoing.