Tonari no Seki no Yankee Shimizu-san ga Kami wo Kuroku Sometekita

Why is the toughest girl in school trying to be my type?!
"My type? A girl with long black hair who carries herself well."
That's what I told my friends during a casual conversation about romance. The very next day, Shimizu— the blonde delinquent who sits next to me— suddenly shows up with her hair dyed black. From then on, every time I mention my ideal girl, she starts doing things she normally wouldn't— showing up to cooking class (which she used to always skip), packing me homemade lunches, etc.
(Source: One Peace Books)