Rakusei (a Touhou LW original) refers to falling stars. This is an apt temperament for Tsukasa, who brings about both joy and misfortune. She's endowed with Star Essence, since she obeys no master, and Moon Essence, since she has two separate faces―one that she shows in public and one that she keeps private. 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 cooperative and indecisive Moon Essence resists the alluring and arrogant Sun Essence, but it is weak to the diverse and uncooperative Star Essence. The combination of Star Essence and Moon Essence cancels out any resistance or weakness to Sun Essence.

Tsukasa Kudamaki's ability as a kuda-gitsune. Kuda-gitsune are said to bring both wealth and misfortune and test the hearts of those who would seek to use them. Kuda-gitsune are a type of tsukimono, a term used for spirits and youkai that possess people. Practitioners who use kuda-gitsune use their power to see into a person's past and future, steal their wealth, and lay waste to their house. In the end, however, the kuda-gitsune multiply and bring about the practitioner's doom. This curse is said to be inherited by future generations, with afflicted families being known as tsukimono-suji. The curse even follows daughters who marry into other families. In fact, this all has some overlap with tales of zashiki-warashi, and so perhaps they are a type of tsukimono. There are also many reasons to think of wealth as something similar: for someone to be rich, another must be poor; the rich tend to get richer; wealth is inherited, etc. In their jealousy, the poor came to accept that the reason why some people became wealthy and subsequently fell into ruin was tsukimono. In other words, they believed the wealthy inherited some unique ability, which they used to steal from others. They didn't acknowledge the achievements of the wealthy or recognize that accruing wealth took effort, they simply affirmed their own justness and rejected all else. The prevalence of this shallow-minded way of thinking led rumors of tsukimono to become legends, with tsukimono eventually becoming youkai. The concept of kuda-gitsune fit particularly well into the teachings of Iizuna Shugen, the heretical non-Buddhist cult. Using kuda-gitsune tests the purity of your soul since they give you the power to control others. However, the souls of those who spread rumors about kuda-gitsune are also tested. When it comes down to it, which side is truly cursed? Economic stability is said to be brought about by the invisible hand of a god, while economic instability comes as a result of so-called animal spirits. After reading that, it's hard not to picture Chimata Tenkyuu and Tsukasa Kudamaki.