Having signed on at Old Trafford from Vitesse Arnhem last summer, the 24-year-old left-back went on to feature 13 times in all competitions during the 2012-13 campaign.
However, when asked by Inside United what targets he has set himself ahead of the new season, the Dutchman replied: "To train hard again every day and I want to be better every day. Of course, I want to play more games. I'll go for that.
"My first season was good, like I have said, but I hope my second season will go better."
Buttner managed to score on two occasions during his 13 outings for the Red Devils.