It grows stronger when faced with a strong opponent; even an Immortal Emperor would have to kneel be

Chen Ping transmigrates to a fantasy world and becomes a useless member of the Qingxuan Sect.
Over the years, I've only managed to survive in the sect thanks to my senior sister's protection.
The "Stronger Against Stronger Opponents" system is activated today.
Gain the passive ability to become stronger against stronger opponents.
No matter who or what powerful person they encounter, their cultivation level is always a whole realm higher than the opponent's, and they are invincible within the same realm.
…………
He went down the mountain to recruit disciples and encountered a powerful figure from beyond the realm.
"The people of the Northern Regions are nothing but ants."
Chen Ping replied calmly, "Is that so?"
A casual strike, a single punch kills!
Within the Qingxuan Sect, the chief of Huoyun Peak used his power to intimidate others.
"If you're at the bottom of the nine peaks, then you should obediently kneel down and behave yourself!"
Chen Ping made his move and killed him with a single sword strike!
The Four Sects Grand Competition saw the Blood Demon Sect mobilize to hunt down the geniuses of the four sects.
Chen Ping stepped forward and wiped them all out with a single sword strike!
Everyone was stunned. Wasn't Chen Ping supposed to be a good-for-nothing? How come he always managed to redefine their understanding of him?
He's invincible from the moment he makes a move; he can instantly kill anyone!