Despite cheating you are corrupted and reverse raped in this rougelike-like game

In a world where demonkind and humans stand opposed… humanity, once on the brink of extinction, was saved by the emergence of a “Hero” and his overwhelming power, who successfully defeated the demonkind from the edge of annihilation. Several centuries later… the surviving demonkind, known as “Succubi,” launch a plan to ensure the continuation of the Hero’s bloodline! As the Hero, you must resist the temptations of “ordinary girls transformed into succubi” and “monster girls” aiming for the Hero’s seed and power, and, with the help of your childhood friend and lover, defeat the Demon Lord! Should you succumb to temptation, you will lose your virginity along with the power of the Hero…!

Aoyagi Yoshino wanted to be a pianist when she was young, but she couldn't achieve that dream. Now, she's the president of a company, is married and has a daughter.

Her daughter has talent with the piano too, so Yoshino wants her to become a pianist and achieve the dream that she couldn't. Everything was fine until her daughter got a boyfriend.

Yoshino thinks that having a boyfriend is gonna make her daughter not want to study abroad and her piano dream will fail again. So, Yoshino decides to seduce her daughter's boyfriend in order to make him break up with her.

The game features a play cycle of exploring and touching, where you explore in the morning and engage in intimate interactions in the afternoon. You can freely explore and interact with the girls in another world’s town, with the option to engage in intimate activities anywhere in town.

In the "links" section for ISExKAI MAIDEN - Osawari H as you like in another world, there are no links, just the statement "Switch the game language by editing Setting.ini file in the game folder" which I sincerely doubt was what you meant to put there.