This study explored the lived experiences of non-Social Science teachers assigned to teach Social Science subjects. Using a purposive sampling technique, nine non-Social Science teachers from public senior high schools in Angono, Rizal participated in a transcendental phenomenological study. Data were gathered through structured and semi-structured interviews, along with classroom observations. The findings revealed several factors that led to their assignment outside of their specialization, including (1) having no option but to comply, (2) years of teaching experience; (3) embracing challenges, (4) lack of specialized teachers (5) school management decisions; (6) the division hiring process; and (7) adherence to regulated policies. These teachers encountered various challenges in teaching Social Science subjects, such as: (1) difficulty in expanding beyond basic ideas; (2) feelings of uncertainty, stress, and anxiety in teaching: (3) limited availability of instructional resources; (4) insufficient time for lesson preparation; and (5) lack of student interest in Social Science subjects.