Hanadoki wo Kakeru

The main character is Satsuki Fujishiro, a high school boy who is neither good at his part-time job nor at his studies. His only pleasure is to copy the dances and songs of his favorite idol group. One day, Minami, a popular boy at school, asks him to join a young boy's idol group because of his ability. The story depicts Satsuki's to act courageously in order to be needed by someone. (Source: Hakusensha, translated) Included one-shot: Gurukan