Yuka

As childhood companions of Chiyo-chan, these two grade-schoolers shared many early adventures before life's transitions moved them into different academic stages. Though separated when Chiyo entered high school, the trio maintained their bond through frequent morning encounters. As they eventually progressed into middle school, they joyfully debuted their new uniforms to Chiyo and Sakaki. Notably, Yuka bears a striking resemblance to a young Yukari Tanazaki, while her friend Miruchi mirrors a younger version of Nyamo.