Nijisanji and Daiyon Kyokai Release Sophia Valentine ARG Case
Nijisanji and creator collective Daiyon Kyokai released "CASE 02: The Record of Sophia Valentine" on November 6, the autumn installment of the ARG "PARALLEL CASE: 2434." The story follows Sophia Valentine as a spy infiltrating White Electronics, with Suzuna Nanase and Shakuson as companions. Episode 01 is free; Episode 02 requires a 5,000 yen USB memory stick sold as goods, with shipping after early December 2026.