Một Tiếng Kèn, Triệu Hồi Âm Phủ

In a world of powerful awakeners and fierce beasts, everyone awakens legendary weapons. I, however, awaken two ordinary instruments. Dismissed as a useless support, I unleash terrifying souls with my melodies, surrounding beasts in an instant. No one expects this "support" to hold such horrifying power. What truly lies behind my instruments?