Masamune-kun's Revenge Vol. 8

When Aki rejected Masamune so many years ago, she set him on a long quest for revenge. He resolved to win her love--and then drop her the same way she dropped him. Yet now, at the end of the class trip to Paris, she doesn't even seem to remember what she did. But home in Japan, Masamune's starting to wonder. Could there be more to the story than he realized...?