Around the time I started using Youtube, I searched for a game called Daigasso! Band Brothers for the DS. After hearing several videos, I looked at the related videos, and stumbled upon
this. Though at the time, I thought it was just something original. A bit after that, I found a video called Nico Nico Douga Medley, and really like most of the music in there. So I favorited that, but really didn't bother to find out where the songs came from.
It wasn't until I saw another Nico Nico Douga Medley video that I actually wanted to figure out where the music was from, particularly that "Help Me, Eirin!" So I did what I always do when I want to ask a question on Youtube. Look around the comments to see if someone already asked it. Sure enough, someone had asked that, and I found out it originated from "A doujinshi called Touhou." When I saw that I was wondering how a manga could have music, because I seriously thought that doujinshi was a term used for fanmanga, and nothing else.
Shortly after that, LuizPrower posted
this video, which is when I found out that it was a game (immediately followed by me trying to find out exactly what doujinshi was). So I tried to find out how to get the games, but decided againts it due to not actually owning a computer (shared family computer back then). By the time I actually obtained a laptop, I had forgotten about Touhou. That is, until I saw a video of the UFO demo. Decided to get the demo, and from there on, I've been playing Touhou.
On an extra note, I managed to 1cc Normal MoF within a month, shortly followed by EoSD, PCB. Though ever since my gamepad broke, I haven't really tried to 1cc anything.