After a school transfer and struggling to connect with others due to his intimidating blond hair, Hasegawa Kodaka meets Yozora, a fierce and solitary classmate conversing with her imaginary friend. Bonded by their lack of companionship, they initiate the creation of The Neighbours' Club, or 'Rinjinbu', tailored for the friendless. As they recruit fellow isolated peers, the club embarks on activities like cooking and gaming to explore the dynamics of friendship. Yet, can this eccentric assembly of social outcasts truly navigate the complexities of interpersonal relationships?