Mikado Ryuugamine accepts an invitation to Shinra Kishitani's place one evening because he is excited to speak with Celty as it has been a while since they last spoke. To his surprise, he discovers that a sizable contingent of Ikebukuro's elite has assembled there for a hot pot celebration. Already confused with the current situation, Mikado is further surprised to see that his friend and fellow Raira Academy student Anri Sonohara is there as well. A number of the group members start sharing memories as soon as the two decide to sit together: Mikado recalls a childhood excursion with Masaomi Kida, Anri explains how she met Mika Harima, and Shizuo Heiwajima shares the story of his first kiss.