My Stepmother and Stepsisters Aren't Wicked Vol. 7 (manga)

SUNNY DAY GETAWAY

Now that the excitement of the sports festival has passed, Miya and her stepsisters are looking forward to some rest and relaxation! And what better place to unwind than the beach? But these young ladies quickly learn they aren't the only ones looking to spend some time by the seaside-Miya's glamorous friend Riru and members of the Eihou Ladies' Academy student council are here too. When it looks like tensions between her sisters and their classmates are beginning to bubble over, it's up to Miya to help them make some happy summer memories!