Even with this increase, it would seem that Viz is still undercutting some members of the competition as publishers including Kodansha, Yen Press, and Seven Seas Entertainment typically charge anywhere from $12.99 to $14.99 per manga volume.

Source: https://comicbook.com/anime/news/viz-media-manga-prices-increase-2024/

The manga was serialized between 1991 and 1997 by Kodansha, and has since received 2 anime series with multiple seasons each.

Source: https://gamerant.com/great-series-written-female-mangaka/