The South Korean didn't even need to think about Alex's question.
He had lost everything there was and nothing mattered more than revenge. If Alex could provide him that, then he was all in for it.
Without much surprises, Alex got Gyujin on his side. This meant a lot and was great power.
Alex fulfilled his part of the promise and let Gyujin take revenge.
One after another, he and Gyujin went to various different places and killed a ton of members related to the underground fight clubs.
It took a whole week to go to different places and kill them, but it was worth the effort.
At his final kill, Gyujin's buried emotions had begun surfacing. As his life's goal was complete, his purpose was fulfilled, deep melancholy for his friend's demise surfaced again, making him think of various things.
Alex dropped Gyujin off to South Korea and then left the place, giving him alone time to reflect on his thoughts.