In 1604 when he was 18 years old, he served for Nagashige ASANO's third son Nagamasa ASANO (the lord of Moka Domain of 20,000 koku in Shimotsuke Province at the time, later became the lord of Makabe Domain of 50,000 koku in Hitachi Province followed by the lord of Kasama Domain of 53,000 koku in Hitachi Province).
慶長9年（1604年）、18歳の頃に浅野長政三男浅野長重（当時は下野国真岡藩主2万石で後に常陸国真壁藩5万石を経て常陸国笠間藩5万3千石）に仕える。