We have discussed the possibility where the observed deviations in the $b \to s \mu^+ \mu^-$ data including the variables $R_{K^{(\ast)}}$ are addressed, in the context of vectorlike compositeness (or so called hypercolor).
Major virtues of this type of scenario are as follows: (i) The theory is manifestly gauge anomaly free; (ii) A desirable form in flavor-changing interactions is naturally realized by exchanges of the hypercolor vector $\rho$ mesons, which are composite spin-$1$ particles being analogous to the vector $\rho$ mesons in the quantum chromodynamics.
We can address the $R_{K^{(\ast)}}$ anomaly consistently, while negligible effects happen in the observables $R_{D^{(\ast)}}$ due to the structure of a global symmetry in the scenario.