Nigemizu (a Touhou LW original) refers to an inferior mirage that occurs in wide open areas and tricks people into seeing water off in the distance. This is Kokoro's temperament as a futuristic tsukumogami who gained a new body after multiple reincarnations. Raiko's magic helped reform her temperament by allowing controlled reincarnations into other tools. This temperament is specialized to resist Moon Essence and Star Essence.

The ability of Hata no Kokoro, who holds surprise concerts (a Touhou LW original). Kokoro's original ability became this one when it was concealed by the system of the Capital. However, due to miscellaneous adjustments and the construction of alternate functions, Kokoro's emotion-manipulating capabilities are unchanged. Even among the diverse range of tsukumogami youkai, Kokoro is unique. The same goes for the Kokoro of this world. She has continued to practice for what seems like forever, but she still hasn't worked out how to properly express her emotions... She can use her screens to display videos that worm their way into the minds of all who see them, affecting their emotions, memories, and, in the case of organic beings, even their physicalities and health. The way she uses her ability seems similar to how satori youkai read minds. In fact, Satori Komeiji might describe her ability as "hacking" into other people's minds if she was familiar with the term. Emotions are intrinsically linked with the body―affecting one directly affects the other. Thus, Kokoro can affect both with her ability as a menreiki tsukumogami. It's even more terrifying if you consider that the body is just a tool acting as a vessel for the soul. Kokoro's job is to hack things in the Psycho-Net. The Psycho-Net is another name for the Spiritual Realm, but it also includes the complex network of spirit paths used to enter and exit that realm. Humans and youkai, who are well-versed in music, have said that being in the Spiritual Realm is like listening to an arrangement of a familiar song. This world's Yuyuko Saigyouji has taken an interest in the Psycho-Net and the worlds accessible through it. The complex arrangement of the Psycho-Net's spirit paths reminds her of the Saigyou Ayakashi's roots. So, naturally, she concluded that there must be something important sleeping in the center of them all. Kokoro decided to help Yuyuko, not because she was interested in uncovering secrets, but because the idea of going where no one had gone before appealed to her. The possibility that she might meet some of her gaming friends for the first time if she passed through to the other side of the Psycho-Net influenced her decision... though, only a little. She was also slightly curious about the Easter eggs supposedly hidden in various worlds. However, perhaps the main reason was that she wanted to unravel the tangled web of emotions inside her.