たぶん犬。

2D anime style. One boy, in a Japanese Shōwa-era school uniform, long pants of the same color and pattern as the jacket; both top and bottom of the uniform are a dark navy base with a fine checkered pattern of thin white lines on mesh, small build, red hair, short hair that stands up sharply and flows backward. Black leopard, plain black fur without any pattern, no eyeballs, eyes are pure white. Boy astride a running large black leopard. The black leopard is viewed from the front-left diagonal. The angle of shot is dynamic, as if bursting forward. Captures the moment when the black leopard dashes through a night cityscape, with streetlight streaks trailing behind, and its limbs suspended in mid-air.