SHOULDER-A-COFFIN KURO SIDE STORY: NOSTALGIC TRAVELOGUE

The curtain closed on Kuro's travels in the final volume with a shocking and moving conclusion. Now reunite with Kuro, Sen, Nijuku, and Sanju in this previously unpublished collection of vignettes about their quest, the telling of which spans a decade, from the masterful pen of Satoko Kiyuduki. Join the mysterious traveler one last time for an unforgettable journey... — Description from AniList community (anilist.co).