 During the course of the serialization of "Mekakushi no Kuni", three separate one-shots were serialized.They were which was published in the March issue of Melody in 2000 and which was published in the July issue of LaLa in 2002 and was published in the May issue of a LaLa-Melody special collaborative issue, "The LaLa×Melody".It was compiled into the second volume of Tsukuba's second series, "Yoroshiku Master".