Also known as: 部長, 須ノ宮さな
Supporting character from Ijiranaide Nagatoro-San.
President of the Arts Club where Nagatoro and her clique gather to 'harass' Naoto. She is a relative of Sunomiya Hana
She is a notorious Nudist with exhibitionist tendencies, as she simply views nudity as the "perfect" form of art. A nod to Nanashi's pre-serialized works.