Solo Leveling is famous for its constant use of aura farming, but one Crunchyroll anime has it beat in that regard, and it's not even close.

PROMOGIFT0213 - SSR Sung Jinwoo Weapon Random Chest x1, Essence Stones x1000 (expires March 31st) 1SOLVDEVNOTE23 - Weapon Custom Draw Ticket x10, Weapon Enhancement Gear? x20, Precision Design x2 ; ...