A slice-of-life Twitter manga spinoff of the Trails series's "Kuro no Kiseki" arc featuring the daily life of 16-year-old high school girl and arc heroine Agnes Claudel, and her days as an assistant to the 24-year-old Spriggan and arc protagonist Van Arkride, released on Dentsuma.Part of a promotional campaign for Nihon Falcom's 2022 release of "The Legend of Heroes: Kuro no Kiseki II -CRIMSON SiN-".