Kono Tabi Osananajimi to Karikon Shimasu  

この度幼なじみと仮婚します

Taichi, after being dumped by his girlfriend, returns home to his parents. His childhood friend Ryousuke visits him and proposes marriage after they haven't seen each other in years. Ryousuke reveals that he has always loved Taichi since childhood and wants to try Provisional Marriage, which allows couples to be married for up to six months. Although taken aback by Ryousuke's strong emotions, Taichi is persuaded by the phrase "you don't have to do anything, so just be with me" and agrees to the provisional marriage as if it were simply agreeing to be roommates. However, things take a turn when Taichi realizes that he may have feelings for Ryousuke that he didn't know existed.