Oji-san wa Kawaii Mono ga Osuki.

Mitsutaka Oji is a forty-year-old office worker who effortlessly commands the admiration of his colleagues. Handsome, composed, and highly respected in his professional life, he projects an image of polished maturity that everyone around him looks up to. Yet beneath this impeccable exterior lies a closely guarded secret: Mitsutaka has an overwhelming passion for all things cute. He goes to great lengths to conceal this endearing hobby from the world, fearing it would shatter the sophisticated persona he has so carefully built. His quiet, double life faces an unexpected threat when his young nephew suddenly moves into his apartment. No longer able to retreat behind closed doors to freely enjoy his beloved collection of adorable items, Mitsutaka finds his hidden passion dangerously close to exposure. With a child now sharing his living space, maintaining the illusion of the stoic, dashing professional becomes an exhausting daily challenge. As the boundaries between his private indulgences and his public image begin to blur, Mitsutaka must navigate the comedic chaos of keeping his most cherished secret safe under his own roof.