During the first episode, Ai and Akari are practicing on the gondola when they come across Aika and Alice in a canal. As they haven't had much time to catch up since becoming Prima undines, it's seen as a "miracle" that they get to spend even a short amount of time together. Akari shares a past incident with Ai while reminiscing. As for the second episode, Ai tells Akari about her own "miracle" experience during a practice session. While on an unfamiliar path, she sees Cait Sith and decides to follow it. This eventually leads her to meeting two Single undines from Himeya and Orange Planet who are practicing.