In a quaint northern town, Kikuko Misuji, fondly known as Nikuko-chan, is the jovial, plus-sized lady running the grill. After a nomadic life, she and her daughter Kikuko find stability on a houseboat by the bay. While Nikuko-chan tackles life with gusto, Kikuko, her introverted daughter, grapples with her mother's exuberance. Amidst middle school dilemmas and unraveling the enigma of her peculiar classmate Ninomiya, Kikuko's journey through adolescence is a rollercoaster of emotions and discoveries.