Anti-podoplanin antibody and antibody-drug complex

Provided is an anti-podoplanin antibody having high binding activity and effector activity. A human chimera or humanized anti-podoplanin monoclonal antibody having rodent-derived CDR in the variable region and a human-derived constant region, wherein the human chimera or humanized anti-podoplanin monoclonal antibody has a human λ chain constant region in the light chain constant region.