Galactic Succubus? You Mean Me?

What if your favorite characters had completely different roles? March 7th transforms into a mysterious ice queen, Dan Heng struggles with half-inherited dragon powers while managing train logistics, and Welt becomes an otherworldly savior. Behind Himeko's elegant facade lies a hidden heart, while the ever-present Arlan harbors his own secrets. In this alternate universe, identities shift and destinies intertwine aboard the Astral Express—where nothing is quite as it seems.