An anime based on the light novel series Endo and Kobayashi Live! The Latest on Tsundere Villainess Lieselotte has been announced.
The series follows a royal couple in a fantasy world, it’s here that the crown prince receives a divine revelation that his fiancee is actually a tsundere. Little does he know that he lives in the world of a dating sim and the godly voices he hears are actually high school students.
— さかき＠ツンリゼ4巻12/27発売！ (@sakakir) December 24, 2021
You can read a summary of the light novel series from J-Novel Club below.
One day, Crown Prince Sieg hears the Voices of the Gods out of the blue. Apparently, his fiancée Lieselotte is a “tsun de rais” villainess destined to meet her demise…and her sharp tongue is just a way of covering up her embarrassment. The prince can hardly contain himself after discovering Lieselotte’s adorable hidden side. Little does he know, the heavenly beings that bestowed this knowledge unto him are actually high schoolers! Can he use their divine prophecy (let’s play commentary) to save his betrothed and avoid a Bad End?!