Low Wu: This Martial Arts Master Knows Immortal Magic? !

[Casual]
Li Qing traveled through time and has a noble status—the son of the city lord!
But at the beginning, not only did the original owner have no memory, he was almost half-clothed when he woke up and almost died on the street!
System? Grandpa? Goldfinger?
He searched all over the world for his ancestors and touched his whole body, but he only found a jade pendant with the word "green" engraved on it.
Until it rained heavily - a mysterious reminder sounded in his mind:
[Water Control Spell: 1%]
The rain became his sharpest knife and strongest shield.
He thought this was an ordinary ancient world, but he gradually discovered:
There are rivers and lakes, sects, and martial arts here. It is a real world of low martial arts.
And with his [Water Control Technique], he has stood at the top of martial arts and is respected as a master!
A green shirt flutters in the wind, and a gourd hangs from his waist.
And...a slightly delicate two-foot long sword? (Although the style is a bit girly)
Traveling thousands of miles south to find relatives, wandering through the conflicts in the world, and cultivating a female emperor.
Who is he?
Passers-by were shocked, bowed their heads and whispered——
The Sword Immortal in Tsing Yi, Li Qing!