Soul Melting Juice (영혼을 녹이는 주스, Yeonghon-eul nog-ineun juseu) is a spell that used by Anna. She summons a large red eye-covered jar that holds 'soul melting juice', a red liquid that melts souls. The jar can move and seems to spill an unlimited amount of the liquid.
Anna attacks Aka Williams, Boro, and Sachi Faker using this spell. However Sachi managed to make a path using his Wand and escape by himself. While Boro and Aka keep running to avoid the attack. Aka got injured by this spell because of protecting Boro and was saved by his teammates who later comes. Boro destroys this jar with the help of Aka and his teammates.