You can select a crew member from the following SSR list to board the train.
Joshua, Katas, Suen, Nayuta, Charlotte, Verlaine, Connor, Stella, Caroline, Margiela, Wensheng, Ilona, Tennie, Ithos, Arina, Nicola, Dorothy, Dustin, Sommer, Shire, Anfiya, Lissandra, Jalhay.

Due to distrust in Night Chains, they learned to create their own version of the Laplace Protocol. It seems to have some impact on the future. The personnel of Night Chains find this incredible.