Haruhi's parents passed away tragically in a car accident when he was only 10 years old. Despite being taken in by his relatives, his sense of loneliness persisted. Now 17, Haruhi is determined to locate his anonymous benefactor who has been sending him an allowance and kind messages for the last seven years. When Haruhi finally finds him and proposes they live together, Kaga is hesitant and uneasy, fearing for Haruhi's safety. But what could be the reason for Kaga's apprehension and where does he disappear to for long periods of time?