All-Rounder Meguru Vol 2

From the Kodansha edition

After losing two matches in a row, high-schooler and budding Shooto fighter, Meguru Takayanagi, is plagued with frustration. In order to get stronger, he begins taking part in joint practice with the kickboxing class by the suggestion of striking instructor, Maria. There, he meets a 5'10" high school girl kickboxer by the name of Maki Kamiya. Their encounter puts the pedal to the metal on this youthful Shooto drama!

Source: Anime News Network Encyclopedia