uni is remarried to kozo, who has two kobu brothers. from the time of the wedding greeting, she tries her best to act as a mother to her brother who has a cold attitude towards the sea urchin, but it doesn’t go well. meanwhile, in the mornings when kozo is not at work, she begins to complain, “if you’re a mother, let me suck your breasts, otherwise i won’t recognize you as a mother.”
