When Chinatsu falls in love, her affection is profound. Presently, her heart is occupied by the boys' tennis team champion, Kasai-senpai, whom she has fancied since her high school's inauguration. She decides to participate in the girls' tennis team to have more chances of interacting with him. However, it's not what she expected as training is exhausting. To make things worse, Kasai-senpai clearly tells her that she's nothing special to him, and his girlfriend makes a habit of bullying Chinatsu repeatedly. Nevertheless, according to Chinatsu's childhood friend Iku, love that's effortless is dull, isn't it?
