Mary Katherine or MK for short, is a 17 year old girl who was shrunk into the Leafmen world.
Mary Katherine is a young girl who's nice, caring and fun-loving. When she met a Leafmen named Nod and falls in love with him.
'Nod'-M.K. met Nod while getting him back after he competed in a race. On a deer ride, they fall in love. When he made fun of her father, she got mad and she hit him. Before leaving Nod, she kisses him and becomes his girlfriend.