  The quirk particle carries Lorentz force and long-range infracolor force,
while suffers relatively large ionization energy loss inside the detector. It
can be indirectly constrained by mono-jet search or directly search through
co-planar hits if the confinement scale is not too low ($\Lambda \gtrsim 100$
eV). Considering the ionization energy loss inside tracker, we improve the
co-planar search. We also will solve the equation of motion for quirks
numerically by including all of the important contributions. Based on our
selection strategy, the $\sim 100$ fb$^{-1}$ dataset at the LHC will be able to
probe the colored fermion/scalar quirks with masses up to {2.1/1.1 TeV}, and
the color neutral fermion/scalar quirks with masses up to {450/150 GeV},
respectively.
