Optical light curves of ZTF20aaglfpy, as labeled in the legend (top). The CRTS has been shifted vertically by 0.8 mag and the ZTF g-band light curve by −0.3 mag to reduce the vertical scale. Middle panel shows the MIR flux in the WISE W1 and W2 filters from the unTimely catalog. Bottom panel show the MIR color evolution, based on the magnitudes in the middle panel. The horizontal line in the bottom panel marks the AGN-like region at W1 − W2 > 0.6. In all panels, the black vertical line marks the date of the SDSS spectrum and the blue line marks the date of the SOAR confirmation spectrum.