Ore To Mou Ichido, Hatsukoi. summary:

I fell in love with fate. But the memory of that love disappeared. Four men were waiting for her when she lost her memory. It seems that just before she lost her memory, she chose one of these men as her fiancé. She had even decided to get engaged, but now she has to redo her first love. You might already be in a trap!All of them are seriously trying to get married, and the exciting reverse love story is about to begin!