Shijima's Sister

Big Sis is one of the supporting characters of Shimeji Simulation. She is the older sister of Shijima. She has long black hair tied into twintails and the same eyes as her younger sister. She is always seen wearing a laboratory coat and wears a fish hairpin on her left side of her front hair. She lives together with Shijima as something of a parent figure. She quit university and is currently focusing on some sort of incomprehensible research. Big Sis is usually shown to be rather aloof and apathetic, she doesn't interact with many people aside from her sister, Majime, and Yomikawa, a...