歓心を買う
to seek one's favour―win one's favour―insinuate oneself into another's favour―ingratiate oneself with one
to buy anything on credit―go on tick for anything
to hire a geisha to do bedservice―(平生なら)―frequent the company of geisha
an act of buying the service of a prostitute and having fun
to go shares in the purchase―club together to buy anything―(二人でなら)―buy between the two―(三人以上なら)―buy among the five
to buy anything on the instalment system―on the payment system