Once legendary runeswords have been reduced to mere decorations, their powers made irrelevant by the discovery of ethereal spirits. Techniques were forgotten, and any remaining runesmiths were ridiculed and shunned.

Vivian is one such runesmith. Born as an orphan and adopted into a smithy, she and her adoptive Grandpa persist with a dream. They wish to prove that runeswords are once again worthy of fighting monsters in the lands below.

What Vivian never expected was for herself to be the one fighting. Alone in the underground with a crazed spirit that seeks to profit and grow from every monster in their wake.