Pavel, that's not idiomatic. Irina, a child from an orphanage is, well, an orphan.

https://www.google.com/search?sxsrf=ALeKk00lcWdB3XZyfJIG_Esh6tB3DNddEA%3A1591274629319&ei=hezYXs__EsTktQWny4awCw&q=%22orhpan+in+the+system%22&oq=%22orhpan+in+the+system%22&gs_lcp=CgZwc3ktYWIQAzIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIGCAAQFhAeMgYIABAWEB4yBggAEBYQHjIICAAQFhAKEB46BAgAEEc6BAgjECc6CQgjECcQRhD5AToFCAAQkQI6BQgAELEDOgUIABCDAToECAAQQzoCCAA6BAgAEAo6BAgAEA06CQgAEA0QRhD_AToGCAAQDRAKOgYIABANEB5Qi6IRWMm-EWCDwxFoAHADeACAAYMBiAG4E5IBBDAuMjKYAQCgAQGqAQdnd3Mtd2l6&sclient=psy-ab&ved=0ahUKEwiP1pT4l-jpAhVEcq0KHaelAbYQ4dUDCAs&uact=5

Pavel and Irina, please remove your guesses before you confuse other users.