Aksa feels pity to see Yujun and Yujin's life is far below the proper standard. The two of them couldn't move freely and work freely like normal people.
They are always overshadowed by the fear of the police. Aksa feels that the future of the twins can still be arranged and improved. So that Yujun and Yujin can continue their lives with feelings that are not haunted by the fear of being chased by the police.
Finally Aksa decided to help them. He wanted Yujun and Yujin to have a decent life. Aksa wanted to do that as a form of revenge. He felt very helped by both of them. If only Yujin hadn't found him at that time and Yujun had not helped him. Maybe he had frozen to death and grieved on the beach.
