Sayana accidentally sends a text message to Izumi, the most popular boy in her class. A message from a girl you've never talked to before is just too scary!　Sayana was in a panic, but since then, she and Izumi have been exchanging text message every week. They became closer through their phones, without telling the rest of the class.... Sayana is thrilled by every stamp, but what about Izumi? The love that begins over a cell phone ends with a happy kiss!