Ore to Mou Ichido, Hatsukoi

I fell in love with fate. But the memory of that love disappeared... After losing her memory, four men were waiting for her. It seems that just before she lost her memory, she chose one of them as her fiancé...! She even decided to get engaged, but she never thought she would fall in love again...!　 "You may have already fallen into the trap!" A thrilling reverse love story begins, where everyone is serious about getting married! (Source: Kodansha, translated)