As the saying goes, after big graduation, small graduation.
Is to be an official before getting married.
Deng Ke originated from the imperial examination system.
At that time, after the imperial examination, the candidates were told whether they were the top scholar or not by publishing the examination list, that is, the yellow list, so getting on the examination list meant getting a job, entering the official career and prospering.
Denko is derived from this.
"Science"-Imperial Examination