Akira Akamori, a high school student transferring schools, encountered a drenched blonde girl named Aoi Sotome in a park on a rainy night. She expressed loneliness as she had no home. Despite being strangers, Akira couldn't leave her alone and took her home. "Thanks for your help," she said. "I-it's fine..." After learning about her difficult circumstances, Akira decided to assist her until he transferred schools. Despite initial confusion, their relationship evolved into something more as they grew closer over time. Their love story involved repeated encounters and separations, like a recurring melody.