Sesena is a kind, extroverted, but eccentric girl with an interest in darker subjects. She is very passionate, and can ramble on about things that interest her for a good while- this is seen when Professor Yoinara brings up Ayakashi and silences her to save time. She claims to know a great deal about things, but cannot remember every detail of her studying. Along with this, despite being knowledgeable on random topics, her academic grades are average.