Pacquiao arrived at the Visayan Forum headquarters to hear first-hand from girls who had been victimized.
He spoke to three rescued girls, all under the age of 12. They had been forced to perform sexual acts in a video chat room for a number of foreign men. Some of the men demanded they perform sexual acts with men pulled off the street, drink their own urine and other even more awful acts. A man off-camera would force the girl's compliance.
Pacquiao left shaken.
"Now that I'm here as a congressman, I know what to do. I know what I can do to help people.
"These traffickers have now been warned. We just need to be vigilant in order to sustain this. We also need funding from Congress. In addition, we need close coordination between government agencies. Likewise, we need coordination within various local governments," said Pacqiuao.
In February 2012, Pacquiao delivered a speech to congress in which he outlined the necessity to stop human trafficking.
"During my visit to the Visayan Forum I talked to children as young as 9-years-old who are trafficked for prostitution," Pacquiao told Congress. "As politicians, we need to be true to our words and actions. We need to send a clear message; that Filipinos are not for sale."
Now more than a year later, the Philippines is in the midst of an election. Congressman Pacquiao is again on the campaign trail -- this time hoping to parlay his popularity into a victory for his wife, Jinkee, who is running to become vice governor of Sarangani district.
Campaigning with his wife is one step toward life after boxing. And rumors of the boxing champ's own political ambitions push beyond the House of Representatives.
Now, fresh off his stunning loss to Juan Manuel Marquez, in which he was knocked unconscious and lay face-down for several seconds before being helped to his corner, Pacquiao is looking toward his future.
Thirty-four is old for a boxer. With more than 60 professional fights under his belt, the fear among those in his circle is that he will stay too long in the game, and do permanent damage to his standing.
Speaking to a CNN producer in Tagalog, Pacquiao says: "In boxing, I don't think people will forget me after I retire. But I really want people to remember me as a public servant, who is good, who is a champion for the people."
Less than two months after his loss to Marquez, Pacquiao scored an equally stunning victory.
On February 13, 2013, Philippines's President Benigno Aquino III, signed the Anti-Trafficking bill Pacquiao had been championing, into law.
For thousands of vulnerable Filipinos whose lives may be changed or even saved, this Pacquiao fight is one whose legacy will last far beyond the ring.