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We present a measurement of the $B^{0} \rightarrow D^{*-} \ell^{+}\nu_{\ell}$ ($\ell=e,\mu$) branching ratio and of the CKM parameter $|V_{cb}|$using signal decays accompanied by a fully reconstructed $B$ meson. The BelleII data set of electron-positron collisions at the $\Upsilon(4S)$ resonance,corresponding to 189.3$\,$fb$^{-1}$ of integrated luminosity, is analyzed. Withthe Caprini-Lellouch-Neubert form factor parameterization, the parameters$\eta_{\rm EW} F(1) |V_{cb}|$ and $\rho^{2}$ are extracted, where $\eta_{\rmEW}$ is an electroweak correction, $F(1)$ is a normalization factor and$\rho^{2}$ is a form factor shape parameter. We reconstruct 516 signal decaysand thereby obtain $\mathcal{B} (B^{0} \rightarrow D^{*-} \ell^{+} \nu_{\ell} )= \left(5.27 \pm 0.22~\rm{\left(stat\right)} \pm0.38~\rm{\left(syst\right)}\right) \%$, $\eta_{EW} F(1) |V_{cb}| \times 10^{3}= 34.6 \pm 1.8~\rm{\left(stat\right)} \pm 1.7~\rm{\left(syst\right)}$, and$\rho^{2} = 0.94 \pm 0.18~\rm{\left(stat\right)} \pm0.11~\rm{\left(syst\right)}$.

Measurement of the $B^{0} \rightarrow D^{*-} \ell^{+} \nu_{\ell}$  branching ratio and $|V_{cb}|$ with a fully reconstructed accompanying $B$  meson in 2019-2021 Belle II data