Our house is near with the subway staion line 7 'Samsan Gymnaisium'.
It takes 7 minutes from my house by walk. I attached the pictures how to come to our house from SamSan Gymnaisium station. It's easy to walk. Also, you can go to line 1 'Bugae' station by bus. It's easy to get there. The last stop is bugae station so everyone will get off at there. The bus stop is in front of our apartment and it takes 10 minutes.
We dont have any strict rules. :)