Eiyuu Densetsu: Kuro no Kiseki, Agnes no Ryuuji

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.