There are six rules that were established so that humans and yokai can co-exist:
You must never harm a human.
You must never show your true form to a human.
You must obey the laws that humans have made.
You must never enchant a human.
You must never have children with a human.
You must never bring a human into yokai territory.
The Minatsuki family has existed peacefully in the human world and has prospered by obeying these rules. This is a story about Airo, the only daughter of the head of the Minatsuki family, the Minatsuki family butler, Raito, and the head maid, Fuuka.
Contrary Airo can't honestly express her feelings and bosses people around. Fuuka has a stiff exterior but can't help teasing whenever she sees an opportunity. This is how they spent their peaceful, everyday life.
One day an incident occurs in the town where they live. Onizou Mitsuki, the head of the household, asks Raito and Fuuka to protect Airo. The two of them must now stay by her side day and night. They accompany her, not just inside of the mansion, but at school as well.
Demi-humans are treated as the lowest out of all races.
In a small village away from human settlements, Mia and her mother, who barely scraped by, was attacked by human traffickers to be soled as slaves.
"At least my daughter could be spared", as Mia's mother handed her a photo and allowed Mia to escape.
One day, Mia ran into the protagonist as he was managing an inn his father left behind.
From the worn-out photograph, the location of this very inn was noted in his father's handwriting.
"This girl's mother... There is no doubt that was father's former demi-human lover"
I decided to take Mia in for a while.
Her body was thin and her hair was dirty.
I did not seek for repatriation from this girl who possessed nothing, but...
"... I... want to be needed more... Let me service you a lot as well tonight..."
In the residential district Kamiitsukomachi's old shopping district lies Hibikino Shop. This general store closed down after the grandfather owning it finally retired.
His three granddaughters, attached to it, and unwilling to let it disappear, decided to renovate it.
Hibikino Shop, loved by its community since 50 years, under the pressure of Yukari, the good for nothing of an eldest sister, became... an eroge store!
Hibikino Shop finally reopened.
A store of this size being too much for only three sisters to handle, and with only Yukari to know about this peculiar kind of products, they asked the second daughter's childhood friend Kurama Ren, our hero, to help them, as a part-time worker.
This is a story about the eroge industry from the perspective of a salesclerk.
Minase ── an isolated island due to its poor accessibility. However, the protagonist used to go there a lot in his childhood.
After entering medical school, his parents were worried about him losing his edge due to the daily study schedule. They wanted to refresh him. The protagonist comes to the island again after being advised to visit his cousins during his summer vacation. He remembers his childhood with them, and being treated like a real family member.
Suiren was beautiful when she was a child, and she was very kind and was like a real sister to him. Shion was like a tomboy little sister and used to follow him around.
The protagonist wonders how the two of them have grown up. He can hear their voices afar from their house. Upon his arrival, he reunited with the two grown-up sisters.
Suiren has become a gorgeous woman with a beautiful feminine body overflowing with tolerance and kindness. Shion, who has grown into a pretty girl, has a somewhat disgruntled look and only talks to the bare minimum necessary.
An older sister who never changes and a younger sister who has changed. Feeling puzzled, as recommended by Suiren, who seems to have been waiting for the main character, the protagonist stay at their house for a while.
How will he spend his time with them on the island under the summer sun?
Despite the popularity of Kashou Minaduki's patisserie, "La Soleil", his father continues to disapprove of it.
Seeing how troubled Kashou was, Shigure offers up a suggestion as a change of pace.
A hot springs trip with Chocola, Vanilla and the other catpanions.
With Azuki and Coconut's encouragement, Kashou is determined to confront his father while Maple and Cinnamon suggest a trip to France to seek advice from the teacher who taught him his craft.
But why is Shigure also tagging along!?
And an encounter with a new catgirl in France...
This story is a heartwarming cat comedy about the growth Kashou experiences through his catpanions and the bonds with them and his family...
"I, the new transfer student, like Komachi Hirotaka! Please go out with me!"
Being agitated by his juniors;
Hitting on the student council president;
Chasing after idols.
The protagonist who lives every day carelessly, Komachi Hirotaka.
At that moment, a sudden confession...
Her brief statment became the impetus which started the conflict that would engulf the dumbfounded protagonist.
"Why are you throwing me to the side and being lovey-dovey with that unknown woman!! Are you saying you don't care about me anymore!?"
"Komachi... if that's how it is then... will you listen to what I have to say?"
"I'm not loved by Onii-san anymore, is this all because of that female crowd around him?"
Mainly without the person in question knowing about it, an ugly and hopeless war unfolds between the 4 girls.
A battle royale of their true feelings of love!
Towards whom shall the Goddess of Victory smile upon!?
They say I'm a guy who doesn't understand human emotions at all.
But really, who actually does?
The start of summer:
Aiuchi Shuuta, a second year at Hokumakidai Academy, is the smartest student in his grade. However, he loses this title for the first time.
A girl, Arimura Romi, climbed her way to the top, while continuing to publish cutting-edge research papers online. She's a very mysterious girl: the textbook definition of an enigma.
And thus, Shuuta seeks Romi's help on a certain matter.
"Aiuchi Shuuta" and "Arimura Romi"
It all started from the meeting of these two geniuses-- a distant summer adventure begins.
The main character is a sprightly young NEET who lives in a dilapidated dojo. He and his family are known martial artists, but his father is a deadbeat; a gambling drunkard constantly getting into fights. Meanwhile, he refuses to work, claiming it to be part of his training. Ichinose Suzuka from the neighboring sweets shop often takes care of him.
One day, he picks up a strange, lizard-like being on the side of the road. At first, he planned to cook it, but Suzuka vetoes the idea. Instead, he names it "Haru" and keeps it as a pet. As he grows fonder of Haru, dragonkin suddenly invade from space!
The dragons are about to take over earth, but Haru suddenly transforms from a lizard into a beautiful lady and persuades them! Wouldn't you know it -- Haru was actually the princess of the dragons!
Mankind somehow avoids total subjugation, but now Haru joins the protagonist in his NEET lifestyle. Meanwhile, Suzuka is on pins and needles as they try to avoid the spotlight. Even now, dragons can be spotted here and there around town. Here begins their bizarre, yet down to earth daily life.
Touko was taken into custody on suspicion of committing murder and testified that she was the culprit. However, she was subsequently released due to insufficient evidence. The general public did not approve of this, so she ended up being imprisoned in a large mansion.
Youta was once saved by Touko when he was young, and he decided to live with her in the mansion after his grandmother passed away, leaving him all alone. They were joined by Touko’s friend Mion, the class rep Yoru, and their eccentric classmate Izuru. He felt that it was a pleasant life, cooking together, chatting about random things and having the occasional argument.
But who is the true culprit? And why did Touko confess to the crime? Can the caged girl be saved?
