Nagisa Shiono is one of four live-in tutors providing education during summer vacation. She stands 168 cm tall, weighs 59 kg, and has physical measurements of 90-55-88 cm. Her appearance features brown short hair styled with an antenna and hazel eyes.

Her professional specialization is mathematics. She maintains a relaxed demeanor and exhibits mischievous personality traits.

Within the tutoring arrangement, she engages in unconventional lessons as part of the educational activities.