The protagonist writes in a notebook about the sadness she feels when the sound of the end of something, like a bell, reminds her of her partner's departure. She feels clumsy and unsure about expressing her feelings in unclear musical notes, so she keeps them locked in her heart. She wonders which words can capture and turn her memories into a song as she traces them with her fingers. She often forgets that she was once alone when she was born, thinking she had everything. The protagonist feels like something is missing in her familiar surroundings and the moonlight in the night sky is unreliable, just like her emotions. She feels like crying and abandoning her unfinished diary, wondering if she will be able to express herself tomorrow. She wonders where the delicate butterfly that landed on her finger will fly in the late night. She realizes that everyone is the same, because they all started out alone when they were born. The protagonist wonders which words can turn the memories decorated with her partner's music into a song. She wonders when the kindness she traced with her fingers will be transformed into someone's love. She realizes that she often forgets that she was alone when she was born, always tied to her dreams. The protagonist concludes that everyone is the same, because they all started out alone when they were born.