From classmates to brother and sister, living under the same roof.

After his father’s remarriage, Asamura Yuuta ends up getting a new stepsister, coincidentally the number one beauty of the school year, Ayase Saki. Having learned important values when it comes to man-woman relationships through the previous ones of their parents, they promise each other not to be too close, not to be too opposing, and to merely keep a vague and comfortable distance.

On one hand, Saki, who has worked in solitude for the sake of her family, doesn’t know how to properly rely on others, whereas Yuta is unsure of how to really treat her. Standing on fairly equal ground, these two slowly learn the comfortable sensation of living together.

Their relationship slowly evolves from being strangers the more the days pass. Eventually, this could end up in a story about love for all we know.

Karna was a boy that was given the title of "Sage" from heaven, is scouted by the hero party that had great expectations for his skills.
However, his skill "necromancer" was creepy and he was immediately exiled.
Karna, who got lost on the road without getting a reward, had accidentally invaded the Demon King territory and was targeted by the demons!
Karna faced a demon with a mighty power, but defeats it with magic that overwhemed it by far.
A fearsome demon. Meanwhile, Cecilia the devil, who saw the whole scene, offers Karna a large annual salary.
And Karna decided to become an enemy of humanity as a magician with the Demon King army――.

I don’t need any deep relationships. I have no desire for a girlfriend, and I only require one friend who holds any value to me. Ever since I threw out my youth for the sake of efficiency, there is one person who keeps entering the bedroom of Ooboshi Akiteru. She’s neither my little sister nor my friend. She’s nothing more than a bothersome, annoying Kouhai, as well as my friend’s little sister: Kohinata Iroha.

“Senpai, let’s go on a date~! Did you think I’d say that~?”

Rather than blood, it seems like energy drinks run through her veins. She keeps occupying my bed, and she tries her best to seduce me with whatever method she can play to her favor. She’s a girl who’s constantly annoying and obnoxious around me. Even though I’m busy all day long, she doesn’t care.

And in case you’re wondering why all these envious gazes are directed at me, it’s because Iroha is actually really popular. She’s an honor student at our school with top grades to boot, and she’s known for being kind and proper to anyone she meets.

…Hey now, why are you only so annoying when you’re around me?

The Unrivaled Father and The Strongest Daughter.
The father's powers that is hidden under the guise of an average D-Rank is...?
The story of their bonds and the storm that awaits them begins!

Everything that happens in the world is settled through games.