Hello? I am the head of a small indie game company called Nano Interactive. (CEO Ji-jong Song)
I was impressed with your Space Art work for the first time in 2011, and at the time, I used your work for various background images of a game called ConquerX2. (Your nickname is always on the credits since 2011)
In 2011, the co-representative (resigned) of our company asked you whether you could use your work in our game, but there was no reply record at that time, so we ask you again.
We would be very grateful if you would allow Nano Interactive to use your Space Art work prior to 2011.
We are currently working on a cryptocurrency version of ConquerX2 at test dot crypto-conquer dot com. (The actual server will be crypto-conquer dot com)
It is also possible to pay the usage fee, so please feel free to reply.