Honkai: Star Rail Character Trailer Shared for Dr. Ratio

Set to join the party of all Astral Express travelers who log into Honkai: Star Rail between his release and Update 2.1 going live (and meeting a few small criteria), Dr Ratio will be playable in-game in the next few days. But after occasionally appearing and being referenced to in story events and references, HoYoverse has shared his character trailer, letting us learn more about the character, his style on and off the battlefield, and personality.