Act 47: Farewell, Minako (さようなら、美奈子　/ Sayounara, Minako)

5:49 Seats

As of this episode, the fifth seat in Crown has changed from white to orange.

6:46 I'll Be Here

This album was released in real life too.

20:16 Ferris wheel

Seems to be the same ferris wheel from Act 12...

20:49 Whipped cream

Seems to be another reference to Act 12

20:49 Sign reads:

Minako Safe Returns Party

20:49 Song: 

Sayonara ~ sweet days
さよなら ~ sweet days
Farewell ~ Sweet Days
Singer: Ayaka Komatsu (as Minako Aino)