Development In June 2021,
Showbox announced plans to produce dramas based on webtoons, including
Delusion. On September 2, 2021, a film industry insider reported that director
Han Jae-rim had begun producing a drama adaptation. The original webtoon, a mystery horror
period drama set in
Gyeongseong in 1935 and
Shanghai in the 1800s, tells the story of a mysterious vampire, and gained significant popularity since its serialization on
Naver in 2019. The specific platform for release and the timeline for filming had yet to be determined at the time. On May 23, 2025,
Disney+ confirmed that it would release
Delusion (working title) as an
original series in 2026. The series' production cost was approximately billion. At the Disney+ Originals Preview 2025 event held on November 13, 2025 at the
Hong Kong Disneyland Hotel Conference Center, the official English title was revealed as
Portraits of Delusion. Casting Ryu Jun-yeol and
Han So-hee were initially considered for the roles of Yun I-ho and Song Jeong-hwa, respectively, but decided not to participate in
Portraits of Delusion after their romantic relationship ended in March 2024. On July 30, 2024, an official from Management Soop stated to
Sports Chosun that
Bae Suzy received an offer to appear in the drama and was reviewing it. Initially, she had been offered the role first, but declined due to scheduling conflicts. The following August, it was reported that
Kim Seon-ho was in discussion with Bae for the leading roles; the two actors had previously starred together in
Start-Up in 2020. On May 23, 2025
Disney+ released script reading photos of Bae and Kim and officially confirmed their casting. == References ==