Mona is the most popular girl in her school, with boys and girls alike fawning over her. This is a position that she revels in and put a lot of time into achieving, so she was quite taken aback when the new transfer student, Medaka Kuroiwa, wanted nothing to do with her. She quickly became determined, then fixated on making him fall for her like everyone else.
Mona tries to present an image of effortless perfection and a sweet disposition, however her real personality is much more vain and less together than she lets on. Underneath it all, she is this still quite a kind person at heart, however.
Her pursuit of Medaka’s affection has caused her to develop genuine feelings for him as well, much to her own surprise and she remains in denial of this for some time. Mona is originally from Osaka and bears a regional dialect which she normally tries to hide, but often slips into when flustered.