Impact of the experimental mass of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mmultiscripts> <mml:mi>Kr</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>70</mml:mn> </mml:mmultiscripts> </mml:math> on the <mml:math xmlns:mml="http:

The recent mass measurement of $^{70}\mathrm{Kr}$ using the $B\ensuremath{\rho}$-defined isochronous mass spectrometry yields a mass excess of $\ensuremath{-}41320(140)$ keV, indicating a 220-keV increase in binding energy compared to the AME2020 prediction. We utilize this experimental mass---the last piece of information needed---to model the potential waiting point $^{68}\mathrm{Se}$ in $rp$ process and quantitatively constrain the sequential $p$-capture reaction flow bypassing this waiting point. Our investigation shows that the more tightly bound nature of $^{70}\mathrm{Kr}$ enhances this reaction flow up to a factor of four. This enhancement reduces the effective half-life of $^{68}\mathrm{Se}$. A one-zone x-ray burst-model calculations reveal that the higher flow of $^{70}\mathrm{Kr}$ has distinct effects on the tail structure of light curve and the final SnSbTe abundances in the ashes due to a stronger $rp$-process heating.