After transferring schools, Hasegawa Kodaka struggles to make friends due to his blond hair that gives off a delinquent vibe. His encounter with the solitary and irritable Yozora, who converses with her imaginary friend Tomo, sparks an idea. Together, they create the 'Rinjin-bu,' a club aimed at those lacking companionship. As they recruit other socially isolated peers, they embark on activities like cooking and gaming to cultivate friendships. Yet, amidst this odd assembly of individuals, can these friendship novices truly connect and thrive?