He recorded details of food and drink with which he was entertained and all these records including his existing diary shows the look of his life as a boarder in Inadani for one and a half years from December, 1883 to April, 1885.
井月は接待の酒肴や趣を逐一記録しており、現存する日記などを合わせると、明治16年12月から明治18年4月までの約1年半の、伊那谷における井月の寄食寄宿生活の動向がうかがえる。