Setsuna is a young woman who presents herself with maturity and assurance. She’s is outgoing, friendly, and always speaks in a sassy manner, using the phrases “girlfriend”, “people”, etc. Normally level-headed and organized, she prefers not to take herself too seriously and prefers to use some time to relax and have fun with her friend she (except when it concerns serious academic projects). Setsuna’s most outstanding traits are intelligence and boldness ; academically excellent, logical, and passionately responsible with her studies, this makes her an honor student, and a dependable class-representative. She puts her smarts to good use and thinks logically, often making rational decisions when faced with a situation. Her smart and outgoing personality labels her as a “big sister” archetype. Despite her smart nature, she does have some idiotic moments.

Although she’s smart, this sometimes put her at a disadvantage: she expects cleanliness and always feels the need to be organized 24/7, and can be too prideful of her achievements and abilities. Her pride and slightly-perfectionistic traits cause her to be quite bossy and  demanding to her friends. She has quite the short-temper, and immediately starts flying into a rage whenever her buttons are pushed. 

Regardless of her prideful and short-tempered tendencies, Setsuna is always there to help her friends and look out for their well-beings like a real big sister.