Endless Ascension - Chapter 54 - , The Troublesome System

Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction.

As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!

Ji Qingzhou was anthropophobic and foolish. She had no redeeming qualities, except for her face.

Once she transmigrated, she was bound to a Guide System to save the world. She was tasked with capturing Shen Rongyu, the sinister, beautiful, mighty, gloomy villain and Great Shixiong of Xuanyun Sect, and to prevent him from destroying the immortal cultivation world in the future.

Can Ji Qingzhou, who had been single for 20 years, learn how to capture a villain?

Of course not.

She started off terribly, and muddled through the tasks that the system issued.

- Description from Novelupdates

Fujii Itsuki unexpectedly found himself in Konoha on the night of the Kyuubi rampage.Although it was a dangerous situation Itsuki still survived.His Isekai life was as dull as it gets, he didn't have any talent for being a shinobi nor did he have a system.Itsuki was prepared to live his life as a lazy bum but unexpectedly he received a summons from the Third, only to find out a piece of shocking news.“ Itsuki I have arranged a marriage for you, the other party is Uzumaki Kushina, I hope you will agree to this marriage ”Facing the request of the Hokage, Itsuki could only reluctantly agree while apologising to Minato who died a few days ago.It's not like he wanted to steal his wife but he was threatened into it.'Sorry Minato, But don't worry I will raise Naruko like she is my own child and take care of Kushina well, and never let her feel any loneliness'Itsuki's seemingly ordinary life was turned upside down due to a single event.

There’s the so called class transfer.

Among the high school students that were given cheat abilities, Kirishima Ran was given 『Underling Training』for some reason, a skill that can make a woman a slave.

Ran who was driven out by the kingdom using an absurd reason will make use of the given skill freely to take revenge on his classmates, release his desires (This is mainly the reason), and fight off the world’s system.

It’s a story of him using his wonderful skill making his classmates turn to an obedient cute and lewd slave.