You will see the initial setup screen (choose language, set time/date).
The MOBICEL VX20 is a feature phone (not a full Android smartphone, though it may run a lightweight AOSP-based system). It does not have an SD card by default, but if you have inserted an external SD card, a factory reset will not erase data on the SD card . You should remove your SD card before resetting to be safe. How to Factory Reset MOBICEL VX20