Manga artist Chimaki Kuori wrote in the afterword of the 15th volume of the Saintia Sho manga that her work is nearing its end.
It's worth remembering that Kuori also mentioned in 2018 that the manga was nearing its end, but it has continued publication to this day. The author assured readers that this time the story is truly approaching its conclusion.
Synopsis
Saintia Sho tells a story parallel to that of the classic anime series. In it, we follow the Saintias, a class of female warriors who do not wear masks and serve directly under the goddess Athena, Saori Kido. The protagonist is Shoko, who becomes the Saintia of Equuleus to rescue her sister, Kyoko, whose body is possessed by the evil goddess Eris.
The manga was launched in Champion RED in 2013.
Source: ANN