Toyama’s medicine sellers leave a box of household medicines with a family. A salesperson visits every six months to a year and collects payment only for the medicines that were used. The Agency for Cultural Affairs describes this as the traditional Toyama method, sen’yō kōri , use first and profit after.
The seller keeps a kakebachō , a customer ledger. A magazine of JR West calls it detailed data for managing customers. The magazine Waraku writes that the sellers won the trust and confidence of their customers.