Ero Manga! H mo Manga mo Step-up ♪ (HD Remaster)

This jumping action game features Fear from “Hanakanmuri” as the main character. It can be played with just a mouse and features simple controls.

Distressed guy returns home after being expelled from the university. He feels like a poor loser and doesn't know how to tell everything to his family.
But he meets three gorgeous sisters home, instead of his parents. They’re genuinely supporting the guy and trying to catch up during his absence.
You understand, that huge possibilities of human pleasure are opened for you, but are you smart enough to get them? Show how capable you are and get the fondest wish!

https://vndb.org/v21529
We already have oppay academy but but there is a HD remaster plus out with all DLC's.

Long ago, the goddess issued the Edict of Heavenly Punishment, wiping out every man in existence. Women were granted unbearably long lives and bodies free from illness. But soon, the desires buried deep within them took form as Tails of Desire, giving birth to male monsters and demonic beings. Morals and ethics collapsed, and the world fell into endless carnal sin and war.
In this age of darkness, the goddess created the world's only man—Ainik, the Envoy of Light. The holy essence within him holds the power to purify women defiled by demons, making him the world's last hope. It also makes him the target for all sorts of evil powers who wish to claim him.
In this clash between light and desire, Ainik stands as both the savior—and the greatest temptation. To save the world, he must dive into the lonely hearts of mature women who have lost themselves to desire.
Young man...are you ready?
Features
- Abundant Adult Content: Over 60 erotic events featuring an array of milfy mature women and hardcore scenes that will make your senses explode!
- Fantastic Female Cast: Includes 8 mature heroines, each with distinct personalities and storylines—discover their naughty hidden desires as the plot unfolds.
- Gameplay Galore: Dive into a meticulously crafted story and extensive exploration content, offering approximately 25 hours of playtime.
- Life Sim and Exploration: Enjoy an array of activities such as cooking, fishing, gathering, and crafting. Collect rare resources, explore the world, and unlock hidden hentai events!
Remastered Edition
The remastered version of the original game was developed by Mango Party after receiving extensive player feedback. Tail of Desire: Remastered retains the original gameplay and plot, and features updated visuals and a fully refined story, delivering a smoother and more immersive experience.
- Art Revamp：The original character designs have been reworked—wrinkles and signs of age were softened to better align with the milfy, mature woman aesthetic.
- Refined Script：The whole story has been professionally edited and polished. Dialogues have been restructured to make the story flow more naturally and provide a more immersive experience.
- English & Japanese Retranslations：Both the English and Japanese editions have been re-translated by Mango Party, offering a smoother reading experience and a more culturally accurate interpretation of the original.

Your parents leave overseas for work, and you're home alone with your stepsister, Kurumi.
Kurumi is a bright and energetic girl who loves to tease you.
She knows exactly how to flirt and be naughty around her virgin older brother.
Even if it's just by marriage, you know you shouldn't get involved like that with your sister, but...
You might just give in to the cute Kurumi and cross a line that's forbidden to an older brother...