Mako to Aki-chan no Koigokoro

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...?
(Source: Chibi Manga)