Sekiyu Ryuushutsu (a Touhou LW original) refers to oil spills, incidents where petroleum hydrocarbon is released into a natural environment due to human activity. This is an apt temperament for Yuuma, who seeks to benefit from the conflicts raging in the dog-eat-dog world of the Animal Realm. Dwellers of the Animal Realm seem to lack the three Essences because this chaotic realm is far from Heaven. Yuuma is endowed with Water Phase, since she can read the ebbs and flows of any situation and adapt accordingly, and Metal Phase, since fossil fuels are produced underground. The cold and silent Metal Phase resists Earth Phase, because earth bears metal, but it is weak to Fire Phase, because fire refines metal. 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 combination of Metal Phase and Water Phase cancels out any resistance or weakness to Earth Phase.

The ability of Yuuma Toutetsu, the taotie―a divine beast capable of devouring anything. Yuuma senses current trends and flexibly adjusts her battle tactics without prioritizing one fighting technique over another. She can also devour absolutely anything, absorbing its essence. It seems doing so even affects her personality. It's only a matter of time until records emerge of someone seeing Yuuma with a different power and personality after she has absorbed something other than oil. In the Animal Realm, which is ruled by violence, it's said that people like Yuuma, who wait for opportunities to present themselves before taking action, are rare. While avoiding risk, she seeks to take her enemies unaware, making Yuuma, too, a violent individual. Yuuma claiming an advantageous position with regard to controlling the oil shows that her way of doing things has its benefits. Together with her ability to absorb anything and make its essence her own, Yuuma's subordinates trust her completely and revere her as the strongest being in the Animal Realm. However, Yuuma rarely uses her subordinates, and the Gouyoku Alliance is supposedly comprised of members acting of their own volition. Yuuma's ability and the alliance's policies are more than a match for the ultra-powerful Saki Kurokoma and the will-breaking Yachie Kicchou. The alliance has received outside criticism, with some saying for all its pride, it's weaker than the other organizations, and others claiming its leader, Yuuma Toutetsu, is a vile individual driven only by her own desires and that her subordinates are most unfortunate. However, it seems all such criticism was made intentionally to damage the alliance's reputation. And with that, the leaders of the three organizations of the Animal Realm, the Keiga Family, the Kiketsu Family, and the Gouyoku Alliance, have come to light. It's thought that there's another organization, whose existence is as of yet unknown. If new information is found, perhaps the truth will reveal itself.