Since his father Takamochi was appointed as Kazusa no kuni no suke (the Assistant governor of Kazusa Province) in 898, he went down to Kazusa Province with his father, where they were based in a house inside the Musha District.
昌泰元年（898年）に上総国介に任じられた父の高望とともに上総国に下向、武射郡の屋形を本拠とした。