There is a scene where Nagatoro takes a bath but steam covers everything up so you can't see anything

The main character often calls her senpai a pervert (in a joking manner)

There is a statue in the art club room, where nipples are BARELY visible.

Nagatoro proceeds to kiss Naoto (she was only teasing) but stops and flicks Naoto's forehead and laughs and says "Did you really think I was going to kiss?"

Naoto accidentally sees Nagatoro's underwear and we see the butt-part of the underwear but no nudity.

Naoto buys an echhi manga. There were rumors that in that manga volume/chapter, there was a hot spring scene. The screen then proceeds to showing some girls in a hot spring, covering their breasts by arms and the body from lower waist is in the water. Only cleavage and side breasts are shown, no nipples.

In the ecchi manga Naoto buys, there is a page where two or more girls are wearing a bra and one girl is wearing an underwear (only garments are visible)

In the echhi manga, a boy(most probably the protagonist) grabs a girl's breasts while he was falling.

Nagatoro squeezes her breasts to tease Naoto.

As Naoto explains that the ecchi manga was a vampire story, the scene shifts into a burning building's outer-ground-floor-garden, where a girl has a pipe in between her breasts. Nipples are covered by clothes, but side-breasts in the cleavage area and cleavage is completely visible.

Nagatoro touches Naoto's groin by accident. After, she asks if he got "hard"

Most girls have big breasts. Sometimes, there is a bouncing effect.

Nagatoro asks Naoto if he wants her to touch his groin again.

Nagatoro asks Naoto that if he wants to play the "Nipple guessing game", where the player has to guess the nipples of the other person with clothes on and poke them. Nagatoro then says that he doesn't want to be a groper. Nagatoro tells Naoto that if he wins, Nagatoro will give him a ticket which he can use to make Nagatoro do "anything", Nagatoro says that Naoto can order him to even wear a swimsuit to the club room (the scene shows her in swimsuit) and even a nude model (Nagatoro is shown naked, but her breasts are covered by steam and hands, and the vagina is covered by thighs and legs.)

Nagatoro pokes Naoto's nipples and Naoto is aroused by it.

A boy says that he hasn't played with a girl's breasts and squeezes his hands while saying that.

Due to rain, Nagatoro's uniform becomes translucent. Nagatoro teases Naoto that her dress is see through and Naoto thinks about Nagatoro wearing a bra and we are shown the bra (with cleavage). Naoto then proceeds to think that Nagatoro was joking about it and turns back but sees Nagatoro's bra. Nagatoro then starts teasing Naoto about it and pushes her breasts against Naoto's back.

Naoto is at Nagatoro's house due to some circumstances, and is given a towel to dry his clothes (since it was raining outside). He smells it and immediately thinks that it was Nagatoro's towel (which she used to take a bath) and Nagatoro is shown taking a bath with her butt and side breasts visible (only in Naoto's thoughts).

Naoto accidentally slaps Nagatoro's breasts.

Nagatoro was washing hands alongside Naoto, and says "Doesn't it seem like we are taking a bath together before having sex?"

Naoto is said to be a virgin probably every episode

Two girls ask Naoto that has he played and squeezed breasts?

The two girls start to bounce their breasts and there is a bouncing effect whenever they bounce them.

These two girls then force Naoto to touch breasts and succeed.

Apparently, when Naoto was forced to touch breasts, there was a ban bun in between, so technically, Naoto touched a bean bun.

Nagatoro tries to play "Bean bun guessing game", where Nagatoro slides in the bean buns inn her breasts and Naoto has to guess which one is the better one. Nagatoro says that if he guesses right, he will get to the the better one (which is a very rare product). While doing so, the bun on the left side falls off and Naoto accidentally squeezes Nagatoro's breast, which makes her aroused.

Nagatoro's friends hold each of Naoto's hand and their breasts push against Naoto's arm.

Nagatoro's friend holds down Naoto by capturing her head by breasts and she keeps them on Naoto's forehead so he doesn't escape.

Nagatoro's and her friend's clothes get evaporated, her friend's outline of vagina is shown, only a little cleavage is shown and bare butt is also shown.

In the beach episode, Nagatoro and her friends change into swimsuits, and they all have large breasts. Cleavage is visible. Naoto gets bullied and Nagaotoro and her friends cover him in the sand, and build breasts on his chest (covered with sand).

In the opening, Nagatoro is shown wearing a swim suit and nude(breasts covered with arms and genitals are covered).

Two couples were kissing behind two trees.

Naoto accidentally squeezes Nagatoro's thighs.

One of Nagatoro's friends is posing for a portrait by Nagatoro, and her breasts bounce and there is a bouncing effect + music. When we are shown the portrait, there is only the silhouette of the body and breasts present, so another one of Nagatoro's friends calls it a "nude portrait".

The cover page of a manga has a girl with only underwear and a small bra (cleavage is visible)

Inside the manga, there is a girl who has very big breasts, and is being chased most probably by tentacles. Naoto says that it is basically a hentai manga.

In Naoto's thoughts, Nagatoro removes everything and covers her breasts (genitals are out of the picture, and breasts are covered by arms) and is taking a selfie.

While helping Naoto exercise, Nagatoro's breasts push against Naoto.

In a painting, the club president is standing naked (we can only see side-breasts and bare butt), no nipples are visible.

One of Nagatoro's friends squeezes Nagatoro's breasts in front of Naoto, Nagatoro is aroused by this.

The Art Club president makes a her own nude portrait. Her nipples are covered by hair and clothes, but breasts are visible. Her genitals are covered by her thighs and knees.

The Art Club President wears a bunny girl outfit, which reveals her cleavage. She also starts stripping to change to her school clothes, but Nagatoro comes in and stops her before she declares that it was a joke

Someone gets bitten by a vampire, not too bloody

Very few uses of profanity in the first episode

A lot of uses of "pervert", "perv", and "closet-perv"

Use of hentai (only in one episode)

None.

None. The bullying is not scary.