That figure was like a ray of light, entering her little world and making her follow it enthusiastically regardless of her own safety. By chance, she became a pen pal after being introduced by a classmate. She knew it was him, which gave her the opportunity to get to know him more truly. The secret love she had when she was young was both sweet and bitter. When she learned that there was another girl beside him, she buried her passionate feelings deeply. After the college entrance examination, she went to a university in the south, a city without him. After meeting again many years later, they get along openly and honestly, and their hearts slowly beat together. She slowly faces her own heart, looking forward to what kind of sparks they will create. A young girl has a crush on a boy, and when they meet again, the boy pursues the girl.