Udon (ウドン) is the friend of Konohamaru and Moegi. He is in the Genin-team led by Ebisu. He seems to have a perpetually runny nose and seems to be very sleepy. Udon states many times that he loves math, as he is usually seen writing math problems during class. Udon idolizes Sasuke Uchiha, stating that if he was lucky enough he would be just like Sasuke. "Udon" is also a type of Japanese noodle. (Source: Narutopedia)