Some of the girls and adults are shown taking a shower after going to the beach. Nothing visual is ever shown.
One of the female characters starts to think to herself about her padded bra and how it's heavier today because it's padded
In a few scenes, you see the main female characters naked from behind and from the front but nothing is ever seen
In an episode, a character starts to worry because of her favorite character underwear.
In one episode, two characters talk about periods, but without using distinct words. They say, "It was almost time for my you-know-what to happen."
In one scene, a girl picks up an erotic comic out of curiosity. Only the cover with shirtless males is seen. The girl gets very flustered/embarrassed as she reads it.
A girl makes a joke about her father being a lolicon, to which he replies with a fantasy about the two of them getting married. He then quips, "Just kidding!"