Sát Khí Trấn Càn Khôn

Missing, extremely new, or very obvious to obtain.

This achievement has no cultural references in the English and Chinese versions. It is likely specific to the game. It's a play on words of Imbibitor Lunae. Since Arkeri is the last heliobus and if the player chooses to seal it, the player could call themselves an inhibitor of the heliobi.