He went to Kyoto and learned medicine according to the method of Dosan MANASE in June 1580 when the confrontation between Terumoto MORI and Nobunaga ODA was intensifying.
1580年6月、毛利輝元と織田信長の対立が激しくなる中、上方に赴いて曲直瀬道三流の医術を修行する。