MU 272 then EU 6678 at Pudong
Tokyo Narita → Shanghai → Chengdu
Timetable, Shanghai time
13:45MU 272 from Tokyo Narita at the gate
12:55EU 6678 to Chengdu leaves the gate
23 h 10 apart on the timetable, overnight
EU 6678 leaves 23 h 10 after MU 272 arrives on the timetable: more than half a day, so not a connection we count.