dan feng (honkai: star rail)
Imbibitor Lunae's previous incarnation in Honkai: Star Rail.
Their outfits are notably different, with Dan Feng having a white collared jacket with long sleeves and no pectoral cleavage, as seen here or here.
This tag implicates dan_heng_(imbibitor_lunae)_(honkai:_star_rail) (learn more).