Straight Up: Sister-zoned!

Since as long as she can remember, Shuna has borne an unrelenting crush on her childhood friend who lives across the street from her. There's only this one LITTLE problem: He sees her as a little sister... nothing more, nothing less... Then again, she was turning 18 soon, so things were bound to change. But her parents plan to announce her engagement on the very same day!!! Play as Shuna, as she decides to actively pursue this fake older brother of hers. Will she steal his heart away? Or will she stay the 'little sister' character and concede to fate? You decide!~