The narrator tells us that he doesn't have any grudge against Cai--he just wants to use the opportunity to send his sister over to see her brother. The narrator says that Cai was kind to him before because he wanted to meet Cai's brother, too. This sibling reunion might be too long, he says, but people change. He also says that he knows Cai has a grudge against him. He asks Cai to help him pass the usb drive to Cai when he's gone. Cai says that's not his business, and that he'll help Cai bring the blind kid to him later. He promises to come back soon.