Princess Connect! Re:Dive - Debutante Shangri-la! Event

An event was organized one Christmas night where young high-class girls are invited to hear about business-oriented speeches, but it turns out to just be a theatre to help introduce boys looking for love. Among those who attended are friendly rivals Saren Sasaki and Akino Toudou, and while listening, the latter is suddenly and temporarily petrified, just before presenting the 50th and last person.