VJ 825 then MH 38 at Kuala Lumpur
Ho Chi Minh City → Kuala Lumpur → Seoul
Timetable, Kuala Lumpur time
15:45VJ 825 from Ho Chi Minh City at the gate
13:25MH 38 to Seoul leaves the gate
21 h 40 apart on the timetable, overnight
MH 38 leaves 21 h 40 after VJ 825 arrives on the timetable: more than half a day, so not a connection we count.