is a Japanese light novel series written by Harunadon and illustrated by Yomi Sarachi. It was originally published on the user-generated novel publishing website Shà Âsetsuka ni Narà  from July 2021 to March 2022. It was later acquired by SB Creative who published six volumes under their GA Novel imprint from December 2021 to March 2025. A manga adaptation illustrated by Chiru Ukai began serialization on the Piccoma website under SB Creative's GA Comic brand in September 2022.
Written by Harunadon, If the Villainess and Villain Met and Fell in Love was originally serialized on the user-generated novel publishing website Shà Âsetsuka ni Narà  from July 13, 2021, to March 2, 2022. It was later acquired by SB Creative who published six volumes with illustrations by Yomi Sarachi under their GA Novel light novel imprint from December 15, 2021, to March 15, 2025. The series is licensed in English by Yen Press.
A manga adaptation illustrated by Chiru Ukai began serialization on the Piccoma website under SB Creative's GA Comic brand on September 9, 2022. The manga's chapters have been collected into six tankà Âbon volumes as of September 2025. The manga adaptation is also licensed in English by Yen Press.