It’s a supernatural technique innately used by the Drowns,
a race of people who control figures on planes.
It makes planar things on the surface of an object
that operates autonomously for a certain amount of time
and with a certain degree of precision.
平面上の図形を司る種族が
生来的に使える技法術。
物体の表面上に、
ある程度の時間、精度で
自律稼働をする平面的存在を生み出す。
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