Traveling through three thousand worlds, Yanling repaired the chaotic rules as an S-class fast traveler. Ancient-style machinations, interstellar mechas, campus superpowers... Every world is full of dangers. Si Jin, the mysterious leader of the Space-Time Management Bureau, is watching silently in the dark. While fighting side by side, ambiguous feelings quietly arise. Can they gain unwavering love when they uncover the conspiracy of the Space-Time Administration?
Concept: Diverse love