What's the meaning of the mining girl?

In fact, the word "mine girl" appeared on the Japanese Internet a long time ago. The original intention is not to say makeup or looks, but to point to a woman who feels cute at first, and once she comes into contact, she will suffer because she loves too much.

Later, it evolved into pouring heavy love into "self-promotion" and "responsibility", and more and more such women began to call themselves "mining women".