Rosella resides with her parents in a penthouse of a small apartment complex with not many floors. Despite living right next to school, her sleepy and easy-going nature is often source of her usual tardiness. Thankfully, Rosella is considered the fastest in her grade, making up for her unpunctuality. Of charming character and athletic frame, she's usually the leader of the group, often clashing with Pol, who, just like her, can often be a bit bossy.