위험한 적재

Complete the Custom Order: Spiritual Nectar or the final stage of Inventory Arrangement as showed in the video below. If you already did these puzzles without getting the achievement, you'll have to keep playing Inventory Arrangement until you randomly get the chance to do that puzzle again.

Probably a reference to the arcade-style block stacking game for mobile Apple devices. The game is also known as Stellar Stacker, where players stack blocks as long as they can. - Credit: spAceLynn