In the middle of the night, Cai Mingyu finally finds his brother. He's worried about what's going on with the student council, but he's also worried about the mole, which he thinks is in a sports club. He wants to figure out the mole's connection to the kidnapping of xiaoman, so he decides to investigate the mole. He also wants to find out the identity of the president of the national geographic club, because that's where the mole came from. He doesn't want the other members of the club to know that he was involved in the kidnapping, so they'll have to explain everything to the public. He says that if he disbands the club, he'll be free to do whatever he wants with his life. But if he does disband, he won't be able to do anything without the academic officer's permission. So, he says, he wants to bring the mole back to the council office. He asks where the culprit is, because he thinks it's the same guy he saw on his binoculars.