The End Episode 13

The enemy's Mecha-nabe is too much for the group to handle. It's capable of neutralizing their music. With one last option in mind, Oji calls home trying to get in contact with Yoshiko, who appears to be leaving him with divorce papers on the table. To his surprise, she shows up along with other people who were touched by Black Heaven's music. Oji starts to play the soft melody song from earlier episode. The rest of the group joins in and together they destroy Mecha-nabe. As the credits roll, Layla and Oji talk about how they're going their separate ways and how Oji will probably think it was all a dream. She gives him a little reminder to which he'll always know that it was real.