A Long time ago, a curse was cast upon the Rindo family. The curse: the family could only give birth to girls. The only way to temporarily lift the curse was to have a child with someone from the Hizuki family. Once the curse was lifted, it would haunt the family again every 3rd generation. Many years have passed and now, Naoto Rindo will be the unfortunate one. His former fiancé from the Hizuki family has passed away due to a tragic accident and now he must impregnate one of the other four girls from the Hizuki family, however, time is running short.
Will he be able to successfully impregnate one of the girls with a boy? Or will the curse ruin his life, forever…

The main character is a senior who attends Rinin High School; the only school among the mountain town of Rinin City. The main character, who is the student president of the high school, has another hidden persona. The persona as head of the “Gang Rape Club”…
A dark ceremony existed that had been handed down for thousands of years in the old town of Rinin; the name of the ceremony, in particular, in the oldest of records. That ceremony, enacted to protect the region from disease and crop failure as a curse from the region’s guardian deity, Hime Iwanaga, occurs in the evenings between the new moon and full moon, in which a maiden is disguised as Konohanasakuyabime and gangraped to appease Hime Iwanaga’s anger. In regards to the maiden, there must be an important man participating in the gang rape, in other words, that man must be related in blood to their wife or lover, mother or daughter, younger sister or older sister, and the like, and after the gang rape, if a pregnancy occurs, Hime Iwanaga’s anger is abated, and a good harvest and safety upon the region will be promised. However, if a pregnancy does not occur for the sake of suppressing Hime Iwanaga’s anger, the maiden is supposed to be covered with semen, and floated down the river alive, as a sacrifice.
And now – after the Tashio era, the ceremony itself had vanished into the dark history, but had still continued on at Rinin High School; the cruel, improper traditions being inherited over into a secret society through actions carried out by the Gang Rape Club. For generations, the student president of the High School has served as the head of the Gang Rape Club, not allowing even one day to pass uneventfully, submerging numerous women to the dark, suffocating pleasure.

Al lives in the Town of Demons, Cornelica where succubi also live. At his side is the succubus,
Lily, who protects him. He lives his everyday life with Lily protecting him from other succubus
who are after his cum.
As an apology for all that has happened to him until now, Arune invites
him to a feast. The feast is held at the tavern and is exquisite, but it was another trap, and he is
assaulted by Arune and Rosary. Everyone looking on, the real feast begins.
Lily and Shirara come to rescue Al. Shirara says that she’s just nursing him as she pushes her breasts against
him, causing Lily’s jealousy to explode. They fight each over Al, as the feast is filled with milk,
love juices, and the dirty sounds of the succubi.
Will he actually survive in this town…?

Airi’s incest life continues on but a new man enters the scene…

During summer holidays, Katsuragi reports to the Tsubaratera household to work as a butler in accordance to his grandfather’s will. There, he meets the spoiled and willful Tsubaratera Kotoha.

Takumi was troubled by her childhood friend Maki’s body pressing against her chest for some reason.
She is often teased because from the outside they look like lovers.
Takumi immediately denies it, though Maki is not bad at it.
Maki’s act is said to be revenge. In the past, Takumi teased Maki, who had small breasts.
But Maki continued to take her dairy products, which made her huge breasts.
It is said that enjoying her reaction with excessive physical contact that presses her breasts is her old revenge.
When Maki hears that, she gets hurt.
Reflecting on her exaggeration, Takumi treats Maki to her favorite milk and bread.
Her perky Maki begins to provoke Takumi with poses that emphasize her breasts.
Maki puts a paper carton of milk in her cleavage to show off her tricks that she doesn’t deal with.Includes “Chichi no Chi Hare” from the original “JK Marginal Copulation-Consensus Insertion Bachibachi Meat Hole-”

Abe Seimei, who deals with the supernatural, is asked to investigate a series of mysterious murders, as demons are suspected to be involved.