The present invention provides a novel antibody that binds to human GPRC5D or a molecule having antigen-binding properties comprising the antibody. Providing a novel antibody that binds to human GPRC5D, a molecule having antigen-binding properties comprising the antibody, an antitumor pharmaceutical composition comprising the antibody or the molecule as an active ingredient, and the like.本発明は、ヒトGPRC5Dに結合する新規な抗体、あるいは、該抗体を含む抗原結合性を有する分子を提供する。 ヒトGPRC5Dに結合する新規な抗体、該抗体を含む抗原結合性を有する分子、該抗体又は該分子を有効成分として含む抗腫瘍医薬組成物の提供等。