Eumnak: Wangnyeo Gulbokada

Fallen to the invasion of the Demon King Zermes, the noble royal princess and queen of the Solaris Kingdom begin their awful days as sex slave instructors, branded with the ‘womb tattoo’ that forces them to seek pleasure. The queen who chooses her own corruption for the sake of her daughter, and the princess who lost even the smallest bit of hope gradually become tamed to the Demon King's pleasure...

(Source: TOPTOON, translated)