This paper is devoted to studying the form of the solutions and the periodicity of the following rational system of difference equations:
\begin{align*} x_{n+1} &= \frac{x_{n-5}}{1-x_n-_5y_{n-2}}, & y_{n+1}= \frac{ y_{n-5}}{\pm1 \pm y_{n-5} + _5x_{n-2}}, \end{align*}
with initial conditions are real numbers.