At 5:30 in the morning, the skyline of Lujiazui, Shanghai was still immersed in the dark blue morning fog, but a lone light was already lit in the cross-border payment compliance office on the top floor of the World Financial Center. Ai Xi rubbed her eyebrows and typed the last line of code on the keyboard with her fingertips. The "Risk Model Verification Passed" prompt box popped up on the screen, like a bullet that accurately hit the bull's-eye, making her tense shoulders finally relax a little.