Most narratives follow classic tropes of reconciliation and self-expression without activist framing. However, the Nightcord at 25:00 unit features Mizuki as a focal character whose gender identity—listed as unknown in Japanese with mixed pronouns in English localization—is the explicit core of their personal arc, including a major event involving being outed as born male, resulting in trauma and withdrawal into the Sekai. This introduces modern identity politics and "forced out of the closet" plotting as a highlighted subplot.

Character customization is limited to costumes and accessories with no pronoun or body-type alterations. No developer DEI mandates or consultancy involvement appear in records. Minor Western-driven controversies led to event cancellations over costume designs, but these are peripheral. The gender-identity element elevates the score due to its narrative centrality for that character despite the game's otherwise traditional entertainment focus.