The bountiful land of 'October'. A post-apocalyptic story of a place that has become a destination for some and a terminus for others. In a world that has perished, two people sing as they head towards their destination, October. The world met its end due to the dandelion disease that completely erased all traces of humanity. Yet, Dandelion continued to sing endlessly, for just one audience member, Chloe. Chloe found hope in Dandelion's song. She felt that even someone like her could be saved. Chloe creates a stage for Dandelion at the coveted location for musicians, 'Paradise Garden'. Standing on the stage of a world where humanity has perished, Dandelion sang a song as beautiful as a siren. 'How wonderful it would be if this moment were not after the end.' If only she could, Chloe wanted to fill this space with countless spectators. She wanted to share Dandelion's beautiful voice with many. She wanted them to see this enchanting siren, to hear the siren's voice. She wanted to decorate it even more beautifully and have Dandelion stand on a splendid stage. Surely many would be captivated by Dandelion's song. 'I must be enchanted by Dandelion.' 'I have been endlessly captivated by this beautiful siren, like a sailor who has heard the siren's song. I don't care about the curse. As long as I can hear this voice.' "My siren." Amidst the despair of the apocalypse, emotions only grow stronger. Will the two of them be able to reach the desired terminus?