The series "All of Us Are Dead" does not explicitly portray any LGBTQ+ characters or themes. The narrative focuses entirely on the survival of students during a zombie apocalypse, without addressing or exploring aspects of sexual orientation or gender identity within its character arcs or plot points.

Based on available information and common knowledge of the series, 'All of Us Are Dead' does not feature any identifiable transsexual characters or themes. The narrative focuses on high school students surviving a zombie apocalypse, with no depiction of transgender identity or related issues.

The series "All of Us Are Dead" is an adaptation of the webtoon "Now at Our School." A review of the main characters indicates that their genders align with their portrayals in the original source material, with no significant gender changes.

The series is a South Korean adaptation of a South Korean webtoon, featuring South Korean actors portraying characters consistent with the source material's implied East Asian racial background. No character established as one race in the source material is portrayed as a different race.