In the case of undergraduate students, their majors are assigned at the end of the first grade, so their majors are not assigned at the time of leave of absence.
Therefore, if you try to return to school, you cannot pass the class as a sophomore because you do not have a major.
Basically, you have to return to school according to the semester, so you have to return to school according to the second semester of the first grade.
If you have to return to school inevitably, there is a way to return to school in the first semester of the first grade due to voluntary pay.