(Fourth Update)
Chen Xiaoyi took down Luo Ziling's ID number and said if necessary, she'd ask him to send photos of both the front and back of his ID for real-name verification. Luo Ziling didn't bring his ID with him, so he simply told Chen Xiaoyi the number.
After jotting down Luo Ziling's ID number, Chen Xiaoyi was slightly disappointed because Luo Ziling turned out to be more than three whole years younger than her, but realizing that he was just a freshman, she got over it.
Chen Xiaoyi told Luo Ziling that once she had everything set up and verified, she would give him the account login information.
If Luo Ziling was willing to let her help manage and maintain the accounts, then she would handle it for him; if not, he could just change the password.
With Chen Xiaoyi saying that, how could Luo Ziling possibly disagree? So he agreed to let her help with the maintenance and operation of the accounts.