Itsuki Nakano

Itsuki Nakano is one of the five identical Nakano quintuplet sisters in The Quintessential Quintuplets (5-toubun no Hanayome). She is the youngest of the sisters (the "fifth" quintuplet) and the first one the protagonist Futaro Uesugi meets and tutors.

She has a serious, diligent, and earnest personality—often well-mannered, polite, studious, and responsible (especially toward academics and her role as a student). At the same time, she's stubborn, headstrong, and can come across as tsundere-like initially, particularly toward Futaro due to their rocky first meeting. She's also known for being a big eater (a glutton), emotional/crybaby at times, and relatively naive or straightforward with her feelings.

Itsuki is often portrayed as the most "motherly" or mature among the sisters in some ways, while also serving as the emotional anchor who cares deeply about her family. She has distinctive reddish-orange hair, star-shaped hairpins, and frequently wears glasses during study sessions. Voiced by Inori Minase (Japanese) and Tia Ballard (English).