The third episode of 10 Counts Towards the Future focuses on one of the members of the boxing team - Akari Mizuno. She lives with her mom. Her mom has separated with Akari's step-father, but the step-father keeps abusing Akari and her mom. So Akari wants to be strong to protect her mom.

One day, Akari asks Shougo to teach her how to defeat a guy. But as a coach, Shougo cannot teach her to fight outside of the boxing ring. So Akari goes to a boxing gym by herself, and the boxing gym is owned by Shougo's friend, Kai. So Kai tells Shougo about Akari coming to his boxing gym. Shougo goes to the boxing gym and asks Kai to teach as she wishes, because he understands from other teachers that she wants to have the ability to protect her mom, which he thinks is reasonable.

Another day, Akari has a chance to beat her step-father, and the step-father agrees to stop all the harassment. Akari feels relieved.