I moved into a bigger room and heard footsteps every night for a year

So this happened when I was in high school. I lived in this old apartment in Gangdong-gu, and I'd been there since elementary school. When I got to high school, my parents finally let me move into the bigger room. I was SO excited. My dad promised me a huge bookshelf, and I could FINALLY fit my piano in there instead of leaving it in storage.

While I was moving my stuff, I noticed something weird. The flooring in one corner was dented in the shape of footprints. Like someone had stomped really hard and left impressions. It was kind of unsettling but I didn't think much of it at the time. I was too hyped about the new room.

Then the weird shit started.

Back then I had this weird sleep schedule. I'd only sleep 1-2 hours at a time, broken up throughout the day. Like, max 3 hours in one stretch. So I was always up at night, especially between 11pm and 1am when I'd finally try to sleep.

Here's the thing about that time of night in a quiet residential area. You can hear EVERYTHING. Footsteps from people walking outside. If you have good hearing you can literally tell if they're male or female.

I have good hearing.

About a week after I moved rooms, I was up late studying for an exam. Everyone else was asleep. Then I heard someone outside. Just... loitering. Pacing around. I figured maybe a family member got up or something and kept studying.

But it kept going. And going. The footsteps never changed. Not like a normal person walking where the sound shifts and moves. It was like someone was just... standing in one spot. Doing an in-place march. Right outside my door.

I got full body chills and threw open my door.

Nothing. Nobody there.

And then. Every single night after that. Between 1am and 3am. Without fail. Footsteps. That specific sound of bare feet on the flooring. For HOURS. But the second I opened my door? Gone.

I told my parents. They said it was stress and dreams and wouldn't listen.

So I started going to bed earlier just to avoid it.

Then a few months later something worse happened.

I was deep asleep and suddenly felt like someone was talking to me. I jolted up in pure panic. My door was locked from the inside. Nobody could have come in.

I laid back down. And as soon as I was about to drift off again, I felt someone's BREATH on my ear. Like someone was right there leaning over me in bed.

I SCREAMED and turned on every light. Nothing. Empty room.

I couldn't sleep with the lights off for an entire year after that. The footsteps kept happening.

I moved away years ago and it stopped immediately. Never heard it again.

But here's what fucks with me now. That dent in the flooring. The shape of footprints. Someone breathing on me while my door was LOCKED. Those footsteps every single night...

I don't want to think about it, but... I'm pretty sure those footsteps weren't coming from outside the room.