Sylphynford is very confident and competitive, often drawing attention to herself with her eccentric habits, which include tossing rose petals over herself and spinning through hallways. She pushes herself to stand out within the crowd, always wanting to make an exaggerated entrance and impress those around her, especially Umaru. She constantly states that Umaru is her rival and she must beat her, however, Sylphyn always comes second to her.

Despite her competitive nature, she is very kind and does not insult those she's competing against, instead preferring to have fun with them playing games. She has even bought a bouquet of flowers for Umaru on her birthday. Using her sociable manner, she became best friends with UMR—Umaru's gaming persona—and looks up to her.

Sylphyn is quick to feel embarrassment when certain people are watching her show off, especially if her brother, Alex Tachibana, is present.