Based solely on the provided movie title, director, cast, and IDs, there is insufficient information to determine the presence or nature of LGBTQ+ characters and themes in 'Sirai, 1984'. An assessment of its portrayal is not possible.

Currently, there is not enough information available to assess the film's portrayal of transsexual characters or themes. Without plot details or character descriptions, a determination of positive, negative, or neutral impact cannot be made, nor can the presence of such characters be confirmed.

The movie does not contain any action or adventure elements.

There is no information provided about source material, prior adaptations, or historical figures for 'Sirai, 1984'. Without a baseline for character genders established before this film, it is impossible to determine if any gender swaps occurred.

There is no information provided regarding the source material for "Sirai, 1984" or the canonical race of its characters. Without this baseline, it is impossible to determine if any character's portrayal constitutes a race swap.