Aohare Otome

Yura was the epitome of an anonymous "mob girl" who had no friends. But the moment she saw a handsome member of the soccer team, Shu Hashira, she realized... "I want to be his ball!" (i.e. I want to be his girlfriend). In order to get close to him, Arika decides to join the women's soccer club! She'll stand out from amongst the crowd to become his one and only heroine!

(Source: Comic Days, translated)