The Chekin tribe had always been deeply invested in singing, especially the males, who were blessed with naturally good voices. Hence, most signalers in the Beamon Regular Army were also Chekin. The so-called "five-line staff" was a secret technique obtained more than a thousand years ago by a Chekin family through unknown means. Back then, this family had won an impressive title by using this technique—"Hegemonic Singing Family." This mysterious Chekin family quietly disappeared from Beamon historical archives after the war in Heigar, vanishing as swiftly and brilliantly as the night-blooming cereus, soon withering away into the dust.