My Sister Just Wants to Be a Wage Earner

On an unspecified day, month, and year, Wen Xinrou, fresh out of college, reported for her internship.

On her very first day, with no idea how to do the job, she was sent by her unscrupulous boss undercover as a high school senior to investigate a case involving missing university admission letters. And so began several days of math, Chinese, English, and science taking turns beating up her mental state.

As the investigation deepened, a story from decades ago quietly came to light.

Every wrong has its culprit, and every debt its creditor.

When the wronged party quietly appears, evil will inevitably bear fruit.

A kite that can never be retrieved.

A girl's whole life.

A puppet on strings.

What lies behind these strange and inexplicable events, one after another?

An older workaholic big sister whose only gentle thing is her name, with no interest in romance x a younger brother who is completely romance-addled.

Warning: The big sister may not accept the younger brother.

Theme: The economic base determines the superstructure.