Villain's Lackey

Lin Xiao was an outer disciple of the esteemed Green Hill Sect.
His cultivation level was modest, yet he was widely recognized, even by several inner disciples.
He was known for his kindness and willingness to do favors for many, particularly Qin Hao, one of the sect's most renowned outer disciples.
Unbeknownst to him, this kindness would lead to his downfall. 
The final favor he performed turned into a grave mistake that left him crippled and subjected to the mockery of others.
He endured years of despair, sadness, anger, and humiliation until, by a twist of fate, he awoke the day of the same tragedy.
Filled with resentment, he decided to kill one of the people he hated the most instead of avoiding conflict.
He executed his plan just as he had envisioned for years, expecting to witness the other party's demise. However, something incredible occurred.
"Congratulations to the host for binding the Wuhang Merit System. You have successfully neutralized the deadly poison and saved Lin Xiuxiu. The reward is ten Merit Points!"
"Save her?..."