Eua (エウア) is a mysterious, antagonistic character, first appearing in Satokowashi-hen. She is a woman whose head is surrounded by an arc that resembles horns not unlike Hanyū's. She chooses part of confused stammers to create the name "Eua," but her true name and nature remain currently unknown.

When They Cry
Keiichi Maebara has just moved to the quiet little village of Hinamizawa in the summer of 1983, and quickly becomes inseparable friends with schoolmates Rena Ryuuguu, Mion Sonozaki, Satoko Houjou, and Rika Furude. However, darkness lurks underneath the seemingly idyllic life they lead. As the village prepares for its annual festival, Keiichi learns about the local legends surrounding it. To his horror, he discovers that there have been several murders and disappearances in the village in the recent years, and that they all seem to be connected to the festival and the village's patron god, Oyashiro. Keiichi tries to ask his new friends about these incidents, but they are suspiciously silent and refuse to give him the answers he needs. As more and more bizarre events occur, he wonders just what else his friends might be keeping from him, and if he can even trust them at all. When madness and paranoia begin taking root in Keiichi's heart, he will stumble straight into the mysteries at work in Higurashi no Naku Koro ni, a story that is told across multiple arcs.

When They Cry (2020)
New kid Keiichi Maebara is settling into his new home of peaceful Hinamizawa village. Making quick friends with the girls from his school, he’s arrived in time for the big festival of the year. But something about this isolated town seems "off," and his feelings of dread continue to grow. With a gnawing fear that he’s right, what dark secrets could this small community be hiding?

When They Cry - Sotsu
Sequel to Higurashi no Naku Koro ni Gou.