Yurino works in the sales department of a publishing company, where his friendly demeanor and ability to see the red threads of fate make him a magnet for romantic advice from colleagues. His social skills lead to a transfer to the editorial division, where he meets Honjo, a writer whose work he will be taking over. To Yurino’s shock, he sees that his own little finger and Honjo’s are bound together by a thick, unbreakable red ribbon—a literal manifestation of a fateful bond. As Yurino navigates his new role and the sudden supernatural tie to the reserved author, the story explores the tension between his pragmatic approach to love and the undeniable pull of destiny. The narrative follows their growing relationship through comedic misunderstandings and genuine emotional connection, gradually revealing Honjo’s guarded personality and Yurino’s hidden vulnerabilities. Set in a contemporary office environment with a light supernatural twist, the series focuses on how the two men learn to trust each other despite an inexplicable link that refuses to disappear.