Phase-folded detrended transit photometry of LP 890-9 c in each observed bandpass. The unbinned data points are shown in grey, while the black circles with error bars correspond to 10-min bins. The best-fit transit model is shown in red, with a different limb darkening for each bandpass. We note that the MuSCAT3 r′- and i′- light curves show a possible hump around mid-transit which could be related to spot crossing.