Swish.

A sudden downpour began.

The sound of rain engulfing the city was sharp and relentless.

Through the curtain of rain, a lone woman walked with an umbrella. She appeared to be in her early twenties, her brown hair cascading just below her shoulders.

The advancements in AI technology had driven explosive scientific progress over the past two decades. This progress was vividly evident in the futuristic cityscape of Seoul, the capital of South Korea, where the woman treaded.

Drones, sporadically flying through the heavy rain, left a striking impression. Holographic advertisements glimmered on building facades, captivating the eyes of passersby.

On one building, a hologram displayed a silver-haired girl wielding a sword in a fierce battle.