Aria the Avvenire: To You, Who I Wanted to Meet... - S0.E11

The first episode of Aria the Avvenire's story starts with Ai practicing on the gondola with Akari. As they travel through a canal, they meet Aika and Alice. All three have not had much time to meet since becoming Prima undines. Considering even the little time they spend together a "miracle," Akari remembers a certain incident and relates it to Ai.