'"Masamune-kun''s Revenge Vol. 4"'

It's summer vacation and that means it's time to hit the beach! But there's more than sunshine and bathing suits when they head to Aki's villa, as there Masamune proclaims in front of everyone that he and Aki are going out! And yet despite that, he still can't seem to close the gap between them--and Neko won't miss this opportunity to strike! A classic test of courage isn't the only scary thing on these sandy shores...