On February 19, 2024, SM Entertainment announced that Wendy would be releasing her second extended play titled Wish You Hell.

The lead single, "Wish You Hell", is a pop song characterized by an "addictive band rhythm, catchy hook melody, and rhythmic guitar melody" with lyrics about "the process of saying goodbye to the past self, who lived according to what people wanted and finding my true self".

[7] The second track, "His Car Isn't Yours", is a R&B pop ballad song with lyrics telling the story of "a narrator who belatedly realizes the importance of a relationship he had missed".

[9] The fourth track, "Better Judgement", is a R&B pop ballad song characterized by "electric guitar sound that span the entire song" with lyrics about "express a determination to leave behind the clumsy youth that was with us in the past and move forward as an adult who accepts me as I am now".

[11] The last track, "Vermilion", is a R&B pop ballad featuring "rich string melodies" with lyrics "describing the image of me becoming more like the other person and becoming braver as I meet and love you".