Aki, a young woman who can't see, experiences her first encounter with Kiyoshi on a rainy day at the school entrance while waiting for her brother. That encounter gave a spark inside her heart, and she noticed the spring scent on the person, which made her hold the umbrella he gave her. She thought she would meet him again the next day, so she stood by the entrance until he came. However, when the sunset came, she would wait again the next day for him at the entrance. She's been doing that until she graduated from high school, and surprisingly, she met him again in college. Let us unfold their story and learn how a battery can form between them.
