Hata no Kokoro

Hata no Kokoro is a character from Touhou Project who debuts in Hopeless Masquerade as the final boss character. While not really evil, her naivete, along with her manipulation of the emotions of the Human Village in her debut, both strictly for good reasons, both count her as somewhat of an anti-villainess. Kokoro is a Menreiki composed of a humanoid girl body with several masks floating around her, becoming a youkai after a long time from these masks that were used by Hata no Kawakatsu, the father of Saragaku performance.

Hopeless Masquerade
For unknown reasons (probably just an accident), Kokoro lost her mask of hope, which caused her power to control emotions to go berserk, causing the humans in the Human Village to lose hope as well and become enthralled in a religious popularity contest that came to be known as the "dueling fad". She controlled the humans through the masks placed on them into looking for her mask of hope.

Reimu and the others participated in this contest and are eventually guided by Mamizou to the Human Village at night, where Kokoro searched in vain for her lost mask. Most of the characters who try to stop her come up with their own solutions to her hopelessness, including Byakuren teaching her Buddhism to control her own emotions and Miko making her a replacement mask of hope, but none of them completely work until Mamizou notices the contradictory actions Kokoro is taking and offers her own advice, which is to stop relying on the masks and discover her own, true emotions through meeting (and fighting) a variety of people. In the process of doing so she discovers her own anger at the religious leaders who are taking advantage of the situation, and Reimu, Byakuren, and Miko team up to stop her. Byakuren and Miko both claim that their solutions solved the problem, and Kokoro is invited to the Hakurei Shrine to perform Noh plays as an offering to the gods.

Appearance
Kokoro has long, pink hair and pink, empty eyes. She wears a blue blouse with plaid pattern. Her skirt is in a pumpkin shape, depicting several faces on it. She carries a total of 66 masks with her, which all holds a different emotion and face. However, she mainly uses the masks holding the emotions joy, anger, pathos and humour.

Personality
Kokoro, a rather lifeless and emotionally devoid person, had to rely on her masks to properly communicate her emotions. All of her masks are in harmony with one another; when she lost the Mask of Hope, it caused a severe imbalance and she would go berserk. Through the story of Hopeless Masquerade, she strengthened her own emotional capacity and became more lively toward her surroundings.