Dead Mount Death Play Side Story: Phantom Solitaire's Art of Disguising Oneself as a Supernatural Being

Dead Mount Death Play Side Story: Phantom Solitaire's Art of Disguising Oneself as a Supernatural Being is a brief two-issue spin-off from the main series, published by Yen Press beginning in 2025. This side story expands the universe of the original manga with a focused, standalone narrative.