This cube craft paper toy is Ai Nanasaki, one of the main female protagonist of the story, and her story is in the 4th arc, based on the Amagami SS of the manga / Anime / Game series Amagami, this paper craft was created by alonso jacobo. Ai Nanasaki is a classmate of Miya Tachibana and Sae Nakata. She is also a student of class 1-B, and an aspiring member of the official Girls' Swimming Team.
She tends to be a cold and reserved girl, hanging most of the time with Miya Tachibana and Sae Nakata, however when she meets Miya's brother, Junichi, despite having a low opinion of him at the beginning, she grows to love him. She also possesses a cool and calm disposition. She also has fans in school as well. She also acts her age, but sometimes she acts the opposite.
She has a younger brother called Ikuo. Also she is a member of Kibitou Girl's Swimming Team, which is why she is wearing her swimsuit most of the time. Apparently she admires her captain, Hibiki Tsukahara.
She has short black hair and purple dusky eyes. She wears their formal school uniform, but she is mostly seen wearing a swimsuit as a part of the swimming team. [Source: wikia]
You can download this cube paper craft toy here: Amagami SS - Ai Nanasaki Cube Craft Free Paper Toy Download