Obaka-chan koigatariki manga

Obaka-chan, Koigatariki summary:

From Shinnen: Since childhood, Neiro has been known for being good at fighting, making people fear her and giving her the title of Kansai's strongest woman. Wanting to find romance, she decides to transfer to a high school in Kanto. Instead, what faced her was a specially assembled class of delinquents.