Mako To Aki-Chan No Koigokoro

From Chibi Manga:
This is the story about the best at swimming Mako and the careless Aki-chan. What will happen between them since they are completely different? Mako loves that womanizer of Aki-chan and then she confessed to him: “Please, let me become a special person for you”. But isn’t Mako a little bit too positive…?