  A light stop around the weak scale is a hopeful messenger of natural
supersymmetry (SUSY), but it has not shown up at the current stage of LHC. Such
a situation raises the question of the fate of natural SUSY. Actually, a
relatively light stop can easily be hidden in a compressed spectra such as mild
mass degeneracy between stop and neutralino plus top quark. Searching for such
a stop at the LHC is a challenge. On the other hand, in terms of the argument
of natural SUSY, other members in the stop sector, including a heavier stop
$\tilde{t}_2$ and lighter sbottom $\tilde{b}_1$ (both assumed to be
left-handed-like), are also supposed to be relatively light and therefore
searching for them would provide an alternative method to probe natural SUSY
with a compressed spectrum. In this paper we consider quasi-natural SUSY which
tolerates relatively heavy colored partners near the TeV scale, with a
moderately large mass gap between the heavier members and the lightest stop.
Then $W/Z/h$ as companions of $\tilde{t}_2$ and $\tilde{b}_1$ decaying into
$\tilde{t}_1$ generically are well boosted, and they, along with other visible
particles from $\tilde{t}_1$ decay, are a good probe to study compressed SUSY.
We find that the resulting search strategy with boosted bosons can have better
sensitivity than those utilizing multi-leptons.
