Потому что ты подарил мне своё сердце 1 сезон

Aihara Ame, once insecure in high school in Nagasaki, found solace in Asano Taiyo, the only person who treated her warmly. After graduation, she moved to Tokyo to pursue her dream of becoming a patissier, never revealing her feelings for him. Eight years later, she returns to Nagasaki and reunites with Taiyo, but a tragic accident plunges her into despair. A mysterious man claiming to be a guide from the afterlife offers her a miracle if she gives him her heart. Meanwhile, Taiyo, who dreams of continuing his family’s fireworks business, has never forgotten Ame and regrets not confessing his feelings when they were together. He meets her again after eight years. (Source: MyDramaList)