在(zai)《月(yue)(yue)(yue)(yue)光(guang)變(bian)(bian)(bian)(bian)奏(zou)曲(qu)原著(zhu)小(xiao)(xiao)(xiao)說》中,月(yue)(yue)(yue)(yue)光(guang)主人公小(xiao)(xiao)(xiao)明(ming)發現(xian)一(yi)本神(shen)秘的(de)(de)(de)變(bian)(bian)(bian)(bian)奏(zou)古老書籍(ji),里面記載著(zhu)一(yi)首(shou)神(shen)秘的(de)(de)(de)曲(qu)原樂曲(qu)——月(yue)(yue)(yue)(yue)光(guang)變(bian)(bian)(bian)(bian)奏(zou)曲(qu)。當他演(yan)(yan)奏(zou)這首(shou)樂曲(qu)時,月(yue)(yue)(yue)(yue)光(guang)房間(jian)突(tu)然充滿了神(shen)秘的(de)(de)(de)變(bian)(bian)(bian)(bian)奏(zou)月(yue)(yue)(yue)(yue)光(guang),時間(jian)仿佛停滯(zhi)了一(yi)般(ban)。曲(qu)原小(xiao)(xiao)(xiao)明(ming)意外發現(xian),月(yue)(yue)(yue)(yue)光(guang)每次(ci)演(yan)(yan)奏(zou)這首(shou)曲(qu)子,變(bian)(bian)(bian)(bian)奏(zou)都(dou)會發生一(yi)些(xie)奇異的(de)(de)(de)曲(qu)原事件(jian),讓(rang)他陷入了一(yi)連(lian)串的(de)(de)(de)月(yue)(yue)(yue)(yue)光(guang)冒險之中。月(yue)(yue)(yue)(yue)光(guang)變(bian)(bian)(bian)(bian)奏(zou)曲(qu)似乎(hu)隱藏著(zhu)無盡的(de)(de)(de)變(bian)(bian)(bian)(bian)奏(zou)秘密,小(xiao)(xiao)(xiao)明(ming)決定(ding)揭開它的(de)(de)(de)曲(qu)原神(shen)秘面紗。月(yue)(yue)(yue)(yue)光(guang)