Teru, a poor and kind girl, recently lost her older brother, her only remaining relative. Before he died, he gave her a cell phone connecting her to a person he said would support her if ever he were unable to. As time passes she is cheered on by text messages sent from this enigmatic person, known only as DAISY. But one day, through an unexpected incident as Teru begins working for the delinquent school janitor, Kurosaki, she starts to question DAISY's identity. DAISY may be closer to Teru than she thinks...