Dan Heng (Chinese: 丹恒) is a playable character in Honkai: Star Rail.

The cold and reserved train guard and archivist of the Astral Express. Wielding a spear named Cloud-Piercer, he joined the Express crew to escape his secluded past.

Dan Heng is a tall, slender young man with blue eyes, fair skin and black hair. He wears a black turtleneck decorated with an qipao-inspired fastening along with a white and green-colored coat, with gold and smoke-styled accents and a jade pauldron on his left shoulder. On his right arm is a dark colored bracer. He wears dark grey pants and black high-top shoes with white soles, as well as an oriental-styled jade tassel earring with a lace connected to his other ear.

A cold and reserved young man who wields a spear known as Cloud-Piercer. He acts as the Express' guard on its long trailblazing expedition.
Dan Heng never talks much about his past. In fact, he joined the Express Crew to escape from a past of his own making.


A new dawn begins.

It's just another extremely average day aboard this giant ship. The markets have just opened and the morning dew is still fresh, but the young man crossing the street has never seen such a sight. Before he manages to notice all the differences between the actual city and its descriptions in books, he is immersed in savoring the warmth of the sun on the back of his neck.

It is his first time seeing his own body clearly. This body belongs to him. It belongs to this current name.

When he arrives at the port, the escorting soldier removes the last of his shackles. He walks forward without looking back. He can feel, ever so faintly, several pairs of eyes gazing at him from within the city. Eyes filled with hatred.

It isn't until the spaceship takes off that he turns his head and takes one final look at this place. It really is a magnificent and grand spaceship — just like the books say.

He only glances at it once, then turns his head away to where the stars shimmer dimly and an uncertain future lies.

He looks out in silence.

"Hm. It's you."