Ground-based transit observations of TOI-2136b. The figure shows the photometry obtained with MuSCAT (M1), MuSCAT2 (M2), MuS-CAT3 (M3), and LCO facilities, and the best fitting model (black line). The systematic effects presented in each data set were fitted and subtracted before performing the joint fit. The dates for each observation are in Table 1. The oldest observations are in the top row, and the most recent are in bottom row.