Konin Todoke ni Han wo Oshita dake desu ga  

Only Just Married, 婚姻届に判を捺しただけですが

Akiba Okado is 27 years old with one conviction, which is that she will never get married. One day, she receives an unexpected marriage proposal from Shin Momose, who wants to marry her not because he loves her but for some unknown reason needs the title of "groom." Despite initially being hesitant, Akiba accepts and their unusual marriage begins. Could this arranged marriage lead to a genuine romantic relationship?

Konin Todoke ni Han wo Oshita dake desu ga was adapted into a live-action TV series in 2021.