In this episode of the series, we see how the characters prepare for a major conflict. The story begins with Cid, one of the protagonists, being approached by his best friend, who suggests that they capture Rose, the student council president, who is now a wanted criminal. Although he admires Rose's rebellious attitude, Cid agrees to help in the search for her. The episode shifts to a conversation about music, particularly Beethoven's Piano Sonata No. 14, the "Moonlight Sonata."

As Cid wanders around, he comes across a theater and wonders if the play exists in this world and if there are others like him who have been reborn. The episode then jumps to a scene where Epsilon, a member of Shadow Garden (posing as a pianist/composer), is playing the piano. They discuss Epsilon's achievements and the fact that Cid unknowingly taught her the plagiarized music she now plays. Epsilon reveals that she has been invited to the Kingdom of Oriana, a realm of art and culture, for a lucrative performance. Cid asks about Rose's whereabouts, and Epsilon tells him that she heard Rose is hiding in the tunnels beneath the royal capital.

Later in the episode, we see Rose reflecting on her role as a princess while hiding in the tunnels. She thinks about past actions, including a decision she once believed was rational but now realizes was made out of anger and despair. She expresses her desire to protect her family and her country but struggles with the realization that her actions may cause more harm than good.

The episode ends dramatically as Rose encounters Shadow in the tunnels, who is playing the "Moonlight Sonata" on a piano, and she wonders what she hopes to achieve. Rose expresses her desire for power and her determination to achieve her goals, regardless of the potential consequences. She also reflects on the actions of others and her own past decisions, expressing regret and uncertainty about the future. They also discuss the idea that true strength comes from the way one is, not from power.

In the final scene, as Cid returns home, his sister is still waiting for him with a friendly smile, which doesn't suggest anything good will happen after she's been waiting for him all day.