"What do you think about me...?" "I see you as my friend, forever." I still regret the lie I told at that time. When Momo was in elementary school, her first love was Haruo, who had a smile like a sunflower. However, in the spring of their fifth year at elementary school, he disappeared. Four years later, when Momo becomes a high school student, she is accidentally reunited with a classmate who looks exactly like Haruo, and her heart pounded violently. "Hey, you're not Haru-chan are you...?" A pure love story of a girl who keeps thinking of a boy from her past.