Based on the information provided, no identifiable LGBTQ+ characters or themes are present in the film "(Marunama) Video Room: Namatsuba Aibu". Therefore, an evaluation of its portrayal of LGBTQ+ elements cannot be conducted.

The film's available plot details and character descriptions do not include any identifiable transsexual characters or themes. Therefore, there is no portrayal to evaluate within the scope of this framework, resulting in an N/A rating.

The movie does not contain any action or adventure elements.

The film is an original production from 1986 and does not adapt any source material with pre-established characters or historical figures. Consequently, no characters exist whose gender could have been swapped from a prior canon.

This 1986 Japanese film is not an adaptation of source material with characters canonically established as a different race, nor does it depict historical figures whose race would be altered. There is no evidence of any character undergoing a race swap.