The core premise, romance system, and endings center on heterosexual infidelity, commitment, and marriage in a traditional dating-sim structure with no gender-agnostic options, pronoun selection, or character customization. Supporting character Erica, a trans woman at the Stray Sheep bar, receives some screen time and dialogue; her trans status is revealed in a group discussion and tied directly to the nightmare curse logic (only men suffer it), which some reviews note as invalidating by modern standards while also depicting transphobia from Vincent's friends.

This element is incidental rather than foundational. No developer statements, consultancy involvement, or marketing emphasize diversity or activism for the Classic version. Full Body's additions like Rin are absent here.