Ch. 521Volumen Hydrargyrum
Bai Mo and Ritsuka summoned Xu Fu in a Qin-era Lostbelt, where she panicked at finding herself back in her homeland. Reines El-Melloi arrived as Rider with Volumen Hydrargyrum, reunited with Bai Mo, and told him what had happened to Kayneth.
- Bai Mo told Xu Fu that she had been summoned to Qin, prompting her to panic and try to flee.
- Reines used Volumen Hydrargyrum to stop Xu Fu, then revealed she was Rider, a Pseudo-Servant of Sima Yi.
- Reines recognized Bai Mo from Kayneth's portrait and thanked him for looking after her brother in Fuyuki.
- Reines told Bai Mo that Kayneth had suffered trauma, stepped down as Lord, and gone to Romania, while she recruited a talented student using legal methods.