Well, he's a nice guy, saving her from the unwanted advances of the two playboys.
Despite them not getting along that well at first, after seeing that ending...Yeah, I think they'll get along just fine from now on. And hey, his uncle making them clean up the beach together may just be his way of being a wingman, too.
Lol that was my reaction as well as I scrolled back and forth thinking I missed it. Going to guess she whipped it off his real quick in between the panels
And after that *koff-koff* 'spontaneous sexy time' encounter (possibly sparked by Ami and Ryouta seeing a good side of each other, while cleaning up the beach as 'punishment', tempers were beginning to flare up, until the Sun Goddess (forgot her japanese name right now) spoke from out of the sunset: "Let Them Chill Out." ... and they both chilled out.