Based on available information, F Marry Kill (2025) does not feature any explicitly identified LGBTQ+ characters, relationships, or themes. The narrative is consistently described as a heterosexual dating-app murder mystery focusing on a straight woman's experiences and female friendships, with no documented queer representation.

F Marry Kill (2025) does not feature any identifiable transsexual characters or themes. The film's narrative focuses on cisgender women navigating online dating and a male serial killer, with all romantic and sexual setups presented as heterosexual. For instance, the main character Eva's dating experiences are exclusively with cisgender men, and no character arc involves gender identity or transition.

The movie does not contain any action or adventure elements.

The film "F Marry Kill" features original characters not adapted from prior source material or based on historical figures. Consequently, no characters possess an established canonical or historical gender that could be altered on screen, meaning no gender swaps occur.

The film "F Marry Kill" is an original screenplay, meaning its characters have no pre-established racial identities from prior source material. Therefore, no instances of race swapping can occur.