Akira Takanashi

Momoko's twin brother who runs away leaving only his school uniform in the closet. When Akira later returns, he admits he ran away to be a photographer, and says that he returned when he found out that Momoko had been forced to take his place. Thinking he is saving his sister, and because he has no talent, he planned on abandoning his dream and switching places with Momoko. However, upon seeing how much Itou and Momoko want to be together, he leaves for a while longer to try again at photography. Multiple times he returns, each time mumbling about wanting to return to school. At the end, he does wind up switching places with Momoko again and going to school. (Source: Wikipedia)