This series has just been added to Manga Up! It goes by the title "My Return to the Imperial Harem: The Tale of Snow White Sow"
https://global.manga-up.com/manga/403
This series has been picked up by Manga Up! English title is "The Newbie Princess Doesn't Want a Game Over! Survive Through the Power of Simping".
https://global.manga-up.com/manga/436
When Roni got the chastity, I was like "How will we survive from all this for 10 days?", then the entire 10 days were played out in the chapter.
Haru being as pure as she is especially when compared with the pervert Eury is hilarious.