What is a First-Class Savior?

【Text Game】【Nominee for Best Newcomer Award of the Year】Saviors also have their ranks.Inferior Saviors are inefficient, saving a world often takes several years or even decades, countless people suffer as a result, and in the end, it's not even certain the world will be saved.Third-rate Saviors are manipulated by schemers their entire lives, ignorant and foolish, toyed with in the palm of their hands, like puppets in the hands of others.Second-rate Saviors pay a huge price to save the world, experiencing widowhood, disability, the sacrifice of friends, and numerous other hardships, ultimately only receiving a useless title or even an epitaph."These Saviors are all too miserable, I don't want to become them, I want to be a first-class Savior!""You ask me what a first-class Savior is?""Light-speed salvation!"...