HO 1506 then EU 6678 at Pudong
Osaka → Shanghai → Chengdu
Timetable, Shanghai time
15:15HO 1506 from Osaka at the gate
12:55EU 6678 to Chengdu leaves the gate
21 h 40 apart on the timetable, overnight
EU 6678 leaves 21 h 40 after HO 1506 arrives on the timetable: more than half a day, so not a connection we count.