Other names:
生意気なギャル姉を解らせる話; Kusobitch na Gal Ane wo Wakaraseru Hanashi; Kusobicchi na Gyaru Ane o Wakaraseru Hanashi; Kusobicchi na Gyaru Ane wo Wakaraseru Hanashi; Namaiki na Gal Ane o Wakaraseru Hanashi; Namaiki na Gal Ane wo Wakaraseru Hanashi; Namaiki na Gyaru An
Every time she opens her mouth, it's nothing but abusive language, and her problematic behavior never stops. The protagonist has had enough and sets a plan into motion??!