Dr Ratio is a 5-Star Imaginary character of The Hunt path who debuted in Honkai: Star Rail during version 1.6. You need to use Dr Ratio Ascension materials to upgrade ...

Dr. Ratio is scheduled to receive his first-ever rerun banner in the second phase of Honkai Star Rail 3.2. After his debut in version 1.6, The Hunt unit is finally getting featured on a character ...