b-ko_(shuuen_no_shiori)
A character from Shuuen no Shiori Project. She is initially featured in a song by 150P titled Nisemono Chuuihou. Her voice actress is Touyama Nao.
B-ko has short brown hair with a red ribbon on the left side, and purple eyes (brown. In addition, she is the smallest of the four main characters. Like other female characters, her school uniform consists of a white collared shirt, a red necktie, a double-breasted white blazer with red trim (sometimes yellowish), and a pleated plaid red skirt.