In which he barely knows her and she never knew he existed, but the tides of the ocean start to change as the moon begins its ascend towards the heavens. They've attended the same middle school and now high school, but Giyuu being the quiet and distant person he is, didn't have any valid reasons to befriend Shinobu. But things take a sudden turn when Kimetsu High's student council treasurer falls ill and the pillars are forced to find a replacement. WARNING: contains curse words and character death