Ganshou (a Touhou LW original) refers to magma. This is an apt temperament for Zanmu, a human-oni who rules over her own Hell. Zanmu is endowed with Sun Essence as an intelligent ruler and Star Essence due to her transgressions. 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 diverse and uncooperative Star Essence resists the cooperative and indecisive Moon Essence, but it is weak to the charming and arrogant Sun Essence. The combination of Sun Essence and Star Essence cancels out any resistance or weakness to Moon Essence.

The ability of Zanmu Nippaku, the heretical human-oni monk. Despite her transgressions, abandoning any hope in humanity's future, and being an oni, she has managed to attain a state of nothingness. A state of nothingness does not refer to a sense of futility or lack of purpose. It is knowing, without any doubt, that nothing in the universe has value. Since Zanmu has attained this state, you may expect her to be apathetic or nihilistic, but that couldn't be further from the truth. It's quite likely that the whole reason why she decided to cause an incident (or rather be suspected of causing an incident and then resolving it) around the time when ownership over land had been called into question was because of this philosophy. The idea that nothing has value is in accordance with Buddha's teachings. The true path to salvation lies in freeing oneself from all worldly desires. Simply observing the rules and traditions of a Buddhist temple is not enough. If you feel that something in this world has value, then it will become an attachment, holding you back on your path to enlightenment. Recognizing that the present has no value lets you have hope in the future. What makes Zanmu an oni is that she sought this future not in the Pure Land of Ultimate Bliss but in Hell. Zanmu and Byakuren are both monks who became disillusioned with humanity. Zanmu and Hecatia both rule over their own Hells. Zanmu and Okina both orchestrated incidents from behind the scenes to announce their presence in Gensokyo. However, the person with the most in common with Zanmu has to be Reimu. Though their exact relationships may differ, like Reimu, Zanmu is surrounded by allies who trust her. These allies include the leaders of the Animal Realm clans, her three spies within those clans, Hisami, and the denizens of Former Hell. They all trust Zanmu because, like a true oni, she's utterly ruthless. She showed this when she decided to abandon Former Hell during her reformation of Hell. Another similarity with Reimu is that while her allies may depend on her, she does not depend on them. It wouldn't be too much of a stretch to call Zanmu the Hell version of Reimu. In all likelihood, if Zanmu had known more about Reimu before she started her incident, it would have been quite different.