An anti-presepsin antibody or an antigen-binding antibody fragment thereof, wherein the antibody or the antigen-binding antibody fragment comprises: (a) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:97, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:9, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; (b) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:8, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:94, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; (c) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:4, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:5, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:6, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:19, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:20, and VL CDR3 consisting of an amino acid sequence of Sequence NO:21; (d) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:8, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:9, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; or (e) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:10, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:11, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:12, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:25, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:26, and VL CDR3 consisting of an amino acid sequence of Sequence NO:27. (a) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:97, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:9, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; (b) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:8, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:94, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; (c) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:4, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:5, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:6, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:19, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:20, and VL CDR3 consisting of an amino acid sequence of Sequence NO:21; (d) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:7, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:8, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:9, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:22, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:23, and VL CDR3 consisting of an amino acid sequence of Sequence NO:24; or (e) VH comprising VH CDR1 consisting of an amino acid sequence of SEQ ID NO:10, VH CDR2 consisting of an amino acid sequence of SEQ ID NO:11, and VH CDR3 consisting of an amino acid sequence of SEQ ID NO:12, and VL comprising VL CDR1 consisting of an amino acid sequence of SEQ ID NO:25, VL CDR2 consisting of an amino acid sequence of SEQ ID NO:26, and VL CDR3 consisting of an amino acid sequence of Sequence NO:27.