When he was just one month old, his whole family was killed, but he fell in love with the daughter of his enemy. A sudden marriage broke up his revenge plan. He ruined his memory, and the nine tails turned into seven tails, just to protect her. When they met on the street again, he forgot about her and walked down the street holding someone else's hand, piercing her heart one by one. She knew that in his life, she was not even a passerby...