Only Bitchy for Me – My Delinquent Otokonoko Cousin! A Forever-Together Vacation!

At the end of summer, Rio, Kaoru, and the protagonist head to a villa near the sea. Since it's off-season for vacations, there's absolutely no one around. So, under the still hot sun, they expose their tanned skin and decide to spend time completely naked. Dressed like this, there's really only one thing to do! A vacation for all three together begins.