FM 822 then EU 6678 at Pudong
Osaka → Shanghai → Chengdu
Timetable, Shanghai time
20:25FM 822 from Osaka at the gate
12:55EU 6678 to Chengdu leaves the gate
16 h 30 apart on the timetable, overnight
EU 6678 leaves 16 h 30 after FM 822 arrives on the timetable: more than half a day, so not a connection we count.