The novel Akuyaku Reijou wa Ringoku no Outaishi ni Dekiai sareru (The Villainess is Adored by the Crown Prince of the Neighboring Kingdom) by Punichan is getting an anime adaptation. It's a love story about Tiara Rose, reborn as a villainess from her favorite otome game, unexpectedly getting a marriage proposal from Prince Aqua Steed, completely derailing the game's storyline. The light novel has 14 volumes, and the manga adaptation by Hoshina has 15 volumes.
Source: natalie.mu