It's the year 784, the year that Natsu and his team go back in time because of a book. After Erza and Lucy split up, Lucy goes to the guild and runs into none other than the famous Laxus Dreyar. They talked for a bit and ever since that day Laxus has always liked that mysterious girl in a bunny costume. When Laxus saw Lucy join the guild, she reminded him so much of that girl back then and has always liked Lucy.
Laxus swore that one day he would make Lucy his.