I'm Invincible From The Start

Intending to pay tuition fees for his sister and buy a new phone for his girlfriend, Chiang Le decided to work on a construction site during his summer vacation. 
He toiled like a slave for a month, enduring intense pains throughout his body, believing it was all worth it.
However, when the time came to collect his salary, the construction site boss decided to deduct half of it, accusing him of stealing construction materials. 
Outraged, Chiang Le decided to protest in front of the construction company.
For over 30 hours, he stood with a sign denouncing his suffering at the company's gate. When he finally met the CEO, he only received a cold and indifferent attitude.
On the verge of nerves, Chiang Le sneaked onto the building's rooftop and threatened to jump if he wasn't paid. Even then, he only received curious looks from passersby.
When he was about to give up, a helicopter descended in front of him on the rooftop. 
Seeing the elegant old man in front of him, he thought that finally, someone had come to bring justice. However, the actions of the old man were not what he expected.
 Kneeling and embracing his legs, the old man called him "Father."
"What..."