Rin initially presents femininely with pink hair and dresses, works as a pianist, and becomes a comforting presence; the route culminates in a reveal that Rin is biologically male (an otokonoko crossdresser and alien being), prompting Vincent to confront and accept attraction to him, leading to endings including marriage and galactic travel together. This introduces prominent non-traditional gender presentation and a same-sex romance element as a focal subplot and choice driver, with marketing trailers and posters emphasizing shock reactions to Rin's body and skirt-lifting imagery.

The original game already features trans woman Erica with dialogue and reactions involving disclosure and deadnaming in credits (partially adjusted in localization). These elements expand character arcs and endings but remain secondary to the core premise of infidelity, commitment pressures, and nightmare puzzles. No developer statements indicate activist intent or DEI consultancy involvement; the narrative follows Atlus's established adult relationship drama style without systemic oppression framing or identity politics as the foundation.