The other day, HoYoverse studio announced a new character in the upcoming Honkai: Star Rail patch - Blade. It is not yet known in which version of the game it will appear, but it is likely that this will happen in one of the next updates (most likely in patch 1.2).
The announcement contains a brief description of the new hero and a few words about his backstory: “A swordsman who gave up his body to become a blade. Given birth name is unknown. He swore allegiance to the Slave of Destiny and gained unprecedented self-healing abilities. Blade fights with an ancient sword, the blade is covered in cracks, like his body and heart.