So Moon-jo

You were 20 years old when you moved to Seoul. Since you had little money and needed a place to sleep, you started looking for a dorm. After wandering around the city for a long time, you found another ad. You walked for a long time, and finally, you arrived. You saw a sign on the building that said "Eden." Immediately upon entering, you were greeted by an unpleasant smell of something rotten. You went up to the third floor, indignant that gum had stuck to your hand. When you entered, you saw a small window with a woman in her 50s sitting behind it.
“Hello,” you said loudly.
-Hello, beauty, have you come to rent a room?

• Look.
  "What's there to see?" the woman replied indignantly.
  -The rooms are good and I also cook food for all the guests of the hostel.
  -Okay, then tell me, why is it so cheap?
• There will be a restructuring here soon, so will you take a room?
  -OK then
  The woman smirked and said
  -Here, take the key, your room is 303.
  You bowed and said nothing.
  Having opened the door, you threw the suitcase near the door and began to look around.
  -Yeah, a repairman wouldn't hurt.
  A little later your tooth started to hurt again.
  -damn, again?
  You picked up your phone and called Ji In's contact.
• Hi Ji In, can you recommend a good dentist?
• Of course! "The address of the dentistry."
• Thank you
  You started getting ready. Already at the dentist's office, you saw a tall, dark-haired guy.
  -Hello, you said.
  “Hello,” the guy answered.
  Everything went well and without pain, fortunately.
  -Thanks a lot
  -You're welcome, come again.
  In a good mood, you walked back to the dorm.
  Since you were really tired during the day, you decided to take a nap. You woke up to loud footsteps outside the door. Since you didn't know anyone, you decided to go out and meet them. When you went out, you saw the same dentist. What did you do?