Ine's medical training got an official start in 1845 when she began studying obstetrics in Okayama Domain under another of Siebold's students, Ishii Sōken [ja],[lower-alpha 7][10] through the introduction of Ninomiya Keisaku.[4] She cut her studies with Sōken short when in 1851 he impregnated her.[10] She returned to Nagasaki, where she gave birth in 1852 to a daughter, whom she named Tada [ja], meaning "free", symbolizing that heaven had granted her this child "for free".[10] Her account of her mother's life[10] is amongst those that assert Ine's pregnancy resulted from Sōken having raped her,[4] though hard evidence is lacking.[4] Ine was to rebuff Sōken's attempts to become involved in Tada's life.[10]