This cube craft is the Sohara Mitsuki, based on the manga series Sora No Otoshimono (Heaven's Lost Property). This papercraft is created by blackignus. Sohara is a teenaged girl of average height, sporting long brown hair, which is usually kept in a pony tail. She has large brown eyes, and notably the largest breasts in the series according to Tomoki. Her measurements are Bust: 92 cm, Waist: 59 cm, and Hips: 84 cm. She stands 157 cm tall (5'2) and weighs 47 kg.
Sora no Otoshimono, also known as Heaven's Lost Property, is a Japanese manga series written and illustrated by Suu Minazuki. The plot revolves around Tomoki Sakurai, a highly perverted young man struggling to live a peaceful life. His already-difficult life worsens when he encounters a fallen Angeloid named Ikaros, who soon becomes his servant.
You can download this cube paper craft model from here: Sora No Otoshimono - Sohara Mitsuki Cube Craft Free Paper Toy Download