Detective Team KZ Case Notes, 3-book set. "The Real Halloween Knows" ◯ Original work: Hikari Fujisaki ◯ Text: Ryo Sumitaki ◯ Illustrations: Komagata "The Golden Rain Knows" "The Missing Bicycle Knows" ◯ Original work: Hikari Fujisaki ◯ Text: Yusei Sato ◯ Illustrations: Komagata This is a used item, so please purchase only if you understand.