天まであがれ

After losing both his parents, Shintaro Matoba had been living alone when a woman named Miho, who claimed to be his older sister, came to stay with him. One day, Shintaro rescued a woman who had fallen into the ocean; she turned out to be Hikaru Misaki, a stage actress. Hikaru gradually found herself drawn to Shintaro’s indescribably commanding presence. (Source: Shogakukan, translated)