A Type F plug in South Korea?
Yes — it seats, earth and all.
South Korea's Type F and Type C sockets accept a Type F plug (Schuko). Both sides carry an earth, so grounded appliances keep their protection. The wall delivers 220 V at 60 Hz (198–242 V within tolerance) — if your device isn't rated for that (look for "100–240 V" on the brick), an adapter won't save it.
Grid facts verified against IEC World Plugs — South Korea. Physical-fit verdicts derive from pin geometry and each socket standard's acceptance list — not safety advice.