Players have to wait for many versions before they find out Sunday's final fate in Honkai: Star Rail 2.7. Not only Sunday, but HoYoverse also finally confirmed the original person of the figure previously known as Tingyun with the debut of Fugue. Unlike her 4-star form, Fugue is set to be a 5-star Fire character, while Sunday follows his sister's Harmony Path, although he bears the Imaginary attribute instead of Physical like Robin.