\begin{tikzpicture}

\begin{groupplot}[group style={columns=1, horizontal sep=1.1cm, vertical sep=0.0cm}]
\nextgroupplot[
            ybar,
            bar width=3pt,
            % Figure size
            width=5.8cm,
            height=3.9cm,
            % Plot style
            every axis plot/.append style={thick},
            % Grid
            ymajorgrids={true},
            major grid style={dashed},
            % Label
            xlabel={Score},
            ylabel={Density},
            xlabel shift=-0.36cm,         
            ylabel shift=-0.1cm,
            xlabel near ticks,
            ylabel near ticks,
            label style={font=\footnotesize},
            % Tick
            tick label style={font=\scriptsize},
            tick pos=left,
            % Tick and Range
            xtick={0.0, 0.2, 0.4, 0.6, 0.8, 1.0},
            extra x ticks={0.1, 0.3, 0.5, 0.7, 0.9},   
            extra x tick labels={,,,,},
            extra x tick style={
                tick style={thin},
                major tick length=3pt,
            },
            x tick label style={/pgf/number format/.cd, fixed, fixed zerofill, precision=1},
            y tick label style={/pgf/number format/.cd, fixed, fixed zerofill, precision=1},
            ymax=0.86,
            ymin=0.0,
            % Legend
            legend style={legend columns=1, font=\scriptsize, at={(0.95,0.95)}, anchor=north east},
            legend cell align={left},
            ]

\addplot[draw=red, fill=red, fill opacity=0.4] table[x=bins, y=cross, col sep=comma]{data/score2.csv};\addlegendentry{Reconstruction}
\addplot[bar shift=1pt, draw=blue, fill=blue, fill opacity=0.3] table[x=bins, y=self, col sep=comma]{data/score2.csv};\addlegendentry{Prefill}

\end{groupplot}
\end{tikzpicture}