first kdrama: all about eve (2000).

first cdrama: idr; but probably journey to the west or the hzgg series.

first hkdrama: probably one of  jin yong‘s novels’ adaptation or gangster drama about bros and betrayal.

first jdrama: some drama set in a high school (gokusen?? or attention please.)

first thai drama: very likely a lakorn.

first twdrama: meteor garden (2001).