144 hour transit visa, Copenhagen (DK) - Shanghai (CN) - Nagoya (JP)

I'm traveling from,

1.Copenhagen -Shanghai
2. Shanghai - Nagoya
3. Tokyo - Copenhagen

I will be staying in Shanghai from the 17/10 to the 22/10. And then departing for Japan, Nagoya, and afterwards I'm flying from Tokyo and then back to Copenhagen. I've already booked my tickets, but I wanted to know if I would categorize for the 144 hour free transit, as I'm only in Shanghai from the 17th to the 22nd of October.

My Port of entry is Shanghai, which I will arrive and also be departing from within 144 hours. I will only be in Shanghai for the week, therefore I will not be traveling out of the region that I arrived in. My next destination is Japan and therefore another country and not an immediate round-trip, but my last destination is Copenhagen.

I hope you can help me figure out if I'm eligible for the 144 hour free transit, or if I have to apply for a normal Tourist Visa.

best regards

Camilla J