王妃様は離婚したい～異世界から聖女様が来たので、もうお役御免ですわね?～

The Kingdom of Lienrhein welcomes a person with memories of another world as a saint and queen. According to this rule, Elys, who has the memory of a "rekijo" (a girl who likes history), becomes the queen, but she is married for political reasons and is forced to live a life where she does not feel the love of King Leenhardt. When Haruna, who has been teleported from another world, appears, Leenhardt's feelings for Haruna begin to grow. One day, when she finds out that the king has spent the night with Haruna, Elys finally makes up her mind, "I'm leaving this place!" (Source: Kodansha, translated)