The Japansese international appeared at home in his midfield anchor role as Colin Calderwood's men came from a goal behind to beat Nottingham Forest 2-1 at Stevenage Borough.
Boss Colin was full of praise for 'Kazu' afterwards but the World Cup star admitted he wasn't satisfied with his own performance.
Reflecting on his first week at the club and his first game, Kazu explained: "I've been training and trying to communicate with the players, trying to understand them and for them to understand me. I thought it was a good first week.
"A lot of things are different but I knew that before I came. As for my first game, I enjoyed it but I'm not really that satisfied. I know I can do more. I did some good work defensively but I can improve my passing. I can do much better."
Kazuyuki Toda insisted he could do much better despite his solid competitive debut for the reserves on Monday night.