Sumie is a very passionate young woman. She takes much pride in her work, often treating her plants like they're her children. Because of this, she has a burning hatred for anyone who treats the environment like trash, and will often scold those who do. She's also a mom figure to her classmates, however this usually falls on the scolding side of things as opposed to the nurturing, loving side.

Her name is pronounced "Sue-me Nah-she"