The modern young man Le Xiaoyao's greatest lifelong hobby was bragging. In other words, showing off.
He had a social disorder that made him boast about anything and everything.
Pick anyone at random, and he could talk their ear off for a whole day.
And when he got going, his bragging was downright terrifying.
Anyone he cornered and bragged at was left suffering.
He bragged all day long. If he went one day without it, he felt out of sorts.
At last, Heaven couldn't take it anymore.
One day, Le Xiaoyao was bragging in a psychiatric hospital, lost in the moment and carried away by his own words.
Just as he was really getting into it, he was struck by lightning.
As the old saying goes, don't show off or you'll get struck by lightning.
After being struck, Le Xiaoyao unexpectedly got bound to a System.
The System sent him to a fantasy world, where he became the eldest princess of the Great Xia Dynasty.
Oh, wait, that's wrong. He became the eldest princess of the Great Xia Dynasty's mount: a big green ox.
There's another old saying: don't brag, or you'll turn into an ox.
Faced with this situation, Le Xiaoyao was completely bewildered and speechless.
This blurb isn't doing the story justice. Go read the main text!