"Hull City stayed in the top division and that is a brilliant thing," Mouyokolo told the club's website.
"My team in France won promotion to the top league for the first time as well, so the ending to the season was the best I could have hoped for. I was very happy.
"Now I have come to Hull and it has always been my dream to play in England. I've been playing football since I was ten-years-old and during that time, England has always had the best league in the world and everybody wants to play here.
"I have worked and worked and worked, but I still didn't think the chance would come so quickly. This is a dream come true and I now have the opportunity that a lot of players in France want.
"I can't wait for the new season to start now. I can tell this club is like a family where everybody works hard for each other. I like that mentality."