Star Iron: Question, Understand, Become the Light

When Ultraman appeared in the Iron Collapsing World, there was an Ultra Warrior on the train. When the train encountered a huge crisis, Lin Yu said: "So I took action." "If you dare to touch the train set, you are this (thumb) and I will let you run away. I am this (little finger). If you can run away, you are this (thumb)." (When you get to Ondaros, the protagonist will also rub one with his own hands) (There is no heroine, there is no system at the beginning, and there will be a system when you get to Xianzhou,) (As a new author, my writing skills may not be very good, but I will listen carefully to everyone's suggestions!)