LJ 9398 then OZ 751 at Incheon
Toyama → Seoul → Singapore
Timetable, Seoul time
16:55LJ 9398 from Toyama at the gate
16:20OZ 751 to Singapore leaves the gate
23 h 25 apart on the timetable, overnight
OZ 751 leaves 23 h 25 after LJ 9398 arrives on the timetable: more than half a day, so not a connection we count.