Kono Kekkon ni wa Suki ga nai

From Shoujo Sense: Right before the wedding ceremony... something happens to the groom?! Would you love someone who has changed? Tomoka and her boyfriend You are going to be married! As they exchange their vows, You proclaims "I don't". Surprised, Tomoka just found out that You doesn't remember her at all! What will Tomoka do? Will You ever remember her?