Mirai no Watashi ni Bukka Masareru!?

Raito Igarashi is a city hall employee and has been avoiding failure as much as possible. One day, just before he proposes to his girlfriend, Rin Tsutsui, at a restaurant, a mysterious uncle pours wine at him. The man tells Raito that he is Raito from the future and if he does not cancel his proposal, he will live a life full of failures.