About

Zerunia, a medieval fantasy world where brilliant magic and swordsmanship have flourished. In this land, there exist summons known as **Resonators**. Unlike typical summons, they are tailored to one's own martial path; if you wield a sword, a sword-wielding Resonator appears, and if you use dark magic, a Resonator proficient in dark magic is summoned. Because a Resonator is more than just a mere summon, one can only attempt the summoning once in a lifetime. *It is possible for a Resonator to manifest as an angel or a demon king, but such cases are treated as legends and are extremely rare.