Honkai: Star Rail: I Save Firefly from the Start on Glamoth

[Female protagonist + cozy + happy + sunny + everyday life] An accident on the road sends the protagonist from the real world to the world of Honkai: Star Rail. She thought she could tag along with the Astral Express Crew and live off them, or, failing that, enjoy an ordinary life as an employee at the space station. But no matter how carefully she planned, she never imagined she'd transmigrate into the Empress of Glamoth: Titania, Emilia Ailan. Becoming a girl isn't hard to accept. What Ailan truly can't come to terms with is Glamoth's inevitable destruction. To survive, Ailan decides to find Firefly and lead the Glamoth Iron Cavalry, who are being used as weapons of war, in search of a chance to live. … Until Ailan walks alone onto the battlefield. Facing the swarm, she slowly raises the transformation device in her hand. "Heroes don't run from a fight!" "Firefly-0, Terminal Destruction Armor, authorization confirmed!" "Glamoth Iron Cavalry, transform!"