The protagonist, Naohiro, and his wife Risa have been married for 4 years. Their married life is smooth sailing, and the good relationship between them is enough to be envied.
Except for one feeling born from Naohiro's heart...
It all started with a small incident. One night, when the couple was happily drinking together, Risa talked about her ex-boyfriend, and after the conversation, Naohiro felt a strange excitement.
Feeling weird, he searched the internet about it, and while doing so, realized that he does indeed have "that" fetish.
However, he can't possibly tell that to his beloved wife, but the more they find happiness with each other, the more stinging sensation torments him from within.
Then one day, one of his juniors back in school, Tsukasa, consulted him about something...
The second-year student Akito is a late-blooming yet stereotypical chuunibyou: engrossed in anime, manga and games, and able to recite lines from memory. Because of this, despite his good looks and attractive voice, he was viewed as a disappointing ikemen. However, he paid no heed to what he believed was mindless drivel and enjoyed his hobbies every day at the school’s anime and game club with his close friend Shunta.
Then due to a certain incident, his childhood friend and class rep Eri began to stay by his side at all times, devoting herself to him. He thought that it was strange and after seeing a specialist, she was diagnosed with the ‘dependence type’ of ‘Aphrodite Syndrome’ and labelled as a ‘Little Sick Girl’.
Aoi Ichitaro's convenient ten-minute walk to school has turned into a one-hour train ride on a little-used local line after a disaster at his apartment forces him to move in with relatives. However, his misfortune turns out to be a blessing in disguise... While Ichitaro has always had a secret crush on his drop-dead gorgeous classmate Aritagawa Nio, she's infamously inapproachable. But now, he finds out that she rides the same train to school, at the same time every day. While she brushes off his approaches at first, her attitude toward Ichitaro changes after he offers his help when he finds her feeling unwell at the station one day.
"You don't need to be so formal with me..."
Soon after, he finds himself on the fast track toward a friendly relationship with her.Yet while she blushes and swoons at all his advances, she refuses to make things official and be his girlfriend. All trains must eventually reach their destination, but where is Ichitaro and Nio's relationship headed...?
Entering the local prep school Hoshimi Gakuen, Koyomi met Hikaru, who has the top grades in the school and is liked by everyone in the class thanks to her bright personality. He found it difficult to approach her, but that all changed one day when he saw her admiring the sunset while taking pictures with her camera. Seeing her so absorbed in her hobby made him even more attracted to her. This chapter of their youth will be full of ‘like’ and ‘love’.
Yuuta was at the airport waiting to welcome his older sister Alice. He had only met her for a few days when his mother remarried overseas three years ago and haven’t had the chance to see her again since then, but they still got along rather well since they frequently chatted on the phone and e-mailed each other.
“I’m here to be your bride♪”
He had been expecting an enjoyable life with his cute sister, but was overwhelmed by the sudden marriage proclamation and pampering beyond his imagination.
“I’ll clean your ears, so rest on my lap~”
“Dinner’s ready. Here, open up~♪”
“Finished your studies? Hehe, have some headpats as a reward”
The sweet days have begun with an older sister who wants to be a bride.
With beautiful flowing black hair and good looks, on top of a calm personality and polite speech, Maho is a well-raised lady no matter how you look at it. However, behind that exterior lies a true side that no one could have imagined: she is actually a avid ero doujin author!
Koutarou ended up moving into the apartment that she managed and quickly discovered the secret that she had tried to cover up at all costs. She was horrified that her secret was out, but contrary to her expectations, he accepted and supported her dream of being a creator. So, she made a once-in-a-lifetime request to him in order to produce the most amazing work:
“Could you provide me with erotic reference materials?”
Thus, he was recruited to help with countless ‘material gathering sessions’. How will the ero manga that they worked on together turn out?
Japan has entered a new era, but Seiji’s life still remained the same. The only recent change has been Maja’s transfer to his class last winter.
However, one night he was attacked and had his life force drained by his underclassman Kanoko. She was actually a magic girl who protects people from monsters, but then why did she attack him? Did it have something to do with her family being attacked by monsters in the past?
It was decided by the magic girl society that Kanoko will stay together with him while they determine the cause of the unnatural changes to her body. Normally she is quite calm and collected, but living with her opened his eyes to another side of her. What will become of their time together full of unexpected intimate incidents?
[A maximum tentastic story of "Magic Girls" x "Tentacles" x "Birthing"!]
Yuri is the only magic girl who works to combat the isekai tentacle invasion. Though she fought tirelessly, she was still a novice magic girl, and her wet holes get drilled repeatedly by slippery tentacles, as they writhe in pleasure!
But these were not ordinary tentacles. They targeted the wombs of human women to plant a "core" in them, and multiple their numbers through forced birthing...!
Though Yuri ahe-cried as she was forced to birth tentacles, her senpai Keito decided to enjoy the mad pleasure that birthing tentacles brought...!?
[Ordinary girls are unable to escape from tentacle pleasures---]