Oppai in the Dream - A Story of being Seduced in a Dream World Created by a Succubus

A breast demon who uses her enormous breasts to squeeze out men’s semen. Engage in a fierce battle with Enano, the breast demon.

Succubus Stories is an erotic text-based adventure game. You play as a peasant-girl-turned succubus, plotting her revenge against the powerful people who ruined her life and stole her family's land. She needs to consume a certain bodily fluid to survive, and has to manage her ravenous lust as she gets closer to her goals.
 
At over 600,000 words total, with five choice-driven story chapters, 35 engaging side quests, and more than 80 unique activities with evolving choices and progression, Succubus Stories is a massive, detailed game that grants players tons of freedom in a large, reactive world. Have tons of hot sex in a variety of ways with anyone you want, make wacky potions from your "leftovers," and unlock new sexy and seductive abilities as you work as both an alchemist and a prostitute in a well-realized fantasy world!

You are trapped in a seemingly never-ending cycle, reliving the same three days over and over again, all while trying to escape from the clutches of your devilish and sexy succubus assailant.

It's another ordinary day in the ordinary lives of Mari and Kotone when something extraordinary happens: the townspeople begin to collapse one after another before their very eyes and transform into horrific monsters! Somehow unaffected by the unknown phenomena, Mari is guided by an ethereal voice and gains the ability to transform into Lilium, a heroine with the power to face the monsters head-on and send them packing. However, saving her home won't be as simple as clobbering her former friends and neighbors... The reality is that the door to another world has opened, and miasma is pouring out through the cracks, turning the town she knows and loves into an unrecognizable hellscape. Only by venturing into the unknown and staging an invasion of her own can Mari hope to stymie the threat and protect all she holds dear.
 
And yet, there are still so many questions left unanswered. What's the truth behind the miasma and the terrifying monsters that roam the streets? How and why did the two worlds become connected in the first place? And perhaps most importantly, is there truly a way for Mari to reverse the damage that's already been done and reclaim her old life?

In order to satisfy his sexual desires, the protagonist attempted to summon a succubus. When he began the ritual, he and his childhood friend ended up in a large communal bath at a succubus academy in another world! In Farench Deshka Girls' Academy, the succubus have boobs that have grown to the brim with milk and perfect bodily proportions. Our protagonist was summoned to this world by the director of the school who held a summon gacha on her own to save the school. The "erotic deviation score" of the school is too low. Therefore the government of Lilingard, the country of succubus in the world of Yggdrasil, is closing the school in one year. In order to save the school, the succubi must become more lewd and raise the erotic deviation score. To ease his dismay, the director grants him the succubus skill "Sex Scouter" which unlocks a vast amount of "Erotic Skills" that makes him surpass majin-level.

With the school's fate on the line, our protagonist has no choice but to become the legendary hero. And with the help of his erotic magic book that he received without permission, he will be able to save the succubus school. With this spellbook and new skills, it is now possible to conquer this school and become invincible in this world. It's time to rebuild the succubus school and build a succubus harem!