Mika had always seen the good-looking altar server every Sunday, during the mass. He, without a doubt, had always got the attention of the girls, and this annoys Mika, a lot. But aside from this gorgeous altar server, Mika has been hearing the angelic voice of the unseen guy whenever she's in the church near their campus. From a lost notebook to losing her fan, will this lead to the introduction of the gorgeous altar server, or will it lead to discovering who owns the angelic voice?