is the second solo single by Tomomi Itano (a Japanese idol, a member of AKB48). It was released in Japan on July 13, 2011, on the label You, Be Cool! (a subsidiary of King Records).
The physical CD single reached first place in the Japanese Oricon weekly singles chart. According to Oricon, it was the 59th most selling CD single of the whole year 2011 in Japan.
Background
The single was released in four versions: Type A, Type B, Type C, and a theater edition.