He does actually! And he plays an important role in Soldier's life when he was a couple of years younger!

Neither Soldier nor Merasmus know each other's real name, it wasn't necessary. They met when they both were around 11 yrs old, Soldier needed a place to rest after getting locked out of his home for the 100th time, that night was a stormy one so he ran to find somewhere to stay. He found a treehouse and decided to pass the night there, the next day, Soldier overslept because of his injuries, and that morning, Merasmus went inside that tree house, meeting Soldier.

At first he did want to kick him out but he was a lonely kid with no friends so he made a deal, he could crash in his "realm" if he played with him. Soldier accepted. From that moment they became friends.

Their friendship is like canon tf2, a really exotic one to say the least. Soldier dragged a baby raccoon one day and took care of it, Merasmus didn't like the idea but discussing with him was like talking to a wall so, whatever.

At age 15, Merasmus had to move away to another city, he said his goodbyes to Soldier and told him to take care of his castle. But, Soldier was devastated to see him gone, it didn't feel the same, so, he turned it into a raccoon sanctuary.