Honkai: Star Rail's story trailer was featured at Gamescom Opening Night Live, and it teased character Dan Heng's past. From the video, it's likely that Dan Heng, Jing Yuan, and Blade share some sort of complicated history. Honkai Star Rail is Hoyoverse's upcoming free-to-play turn-based RPG game.

In Dan Heng's nightmare, Blade--who looks like he's been arrested for something--tells Jing Yuan, "Of five people, three must pay a price. You are not one of them, Jing Yuan."

Dan Heng's dream then skips to Blade telling him, "You are one of them." Dan Heng, upon waking up, exclaims that the Xian Zhou Alliance is in danger and is about to say something about the man in his dreams, before the trailer leaps to the train getting ready to make a teleportation jump.