The protagonist is a sniper.
As soon as he arrives in another world, he sees a middle-aged man bullying a beautiful woman.
Without a second thought, he fires a shot.
The Sword Sage is gravely wounded on the spot. When everyone realizes the protagonist did it, they respectfully hail him as the Sword God, since he can defeat the Sword Sage in a single move.
The beautiful woman even volunteers to follow him and form a contract.
The protagonist only wants to return to Huaxia, so her devotion gives him a headache.
There are only two ways home: either he cultivates to the Divine Realm, which is utterly unrealistic, or someone from the Divine Realm takes him across worlds. But the Sword Sage, the person most likely to become the Sword God, has been gravely wounded by the protagonist…
Just then,
the Sword Sage comes to call at the door. He arrives and immediately asks the protagonist to take him as a disciple. The protagonist insists he isn’t a cultivator and has no idea how to teach anyone.
Then word gets out that the Sword Sage is gravely wounded, and his enemies come to attack.