Set in Nagano prefecture, "Ohisama" covers the life of Yoko Sudo through World War II. Yoko Sudo with her smile is able to bring brightness to those other around her and she follows her mother's motif to laugh through hard times. During the onset of WW II, Yoko Sudo is a high school student and "Ohisama" follows her as she eventually becomes a teacher and then gets married and has a child. Yoko Sudo then opens a soba restaurant with her student.