Castle of Black Iron - Chapter 104: A Great Shock

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

The NPC sets out on a journey to defeat the Demon Lord, joined by beautiful girls he meets along the way.---This is an NSFW story, so if you're under 18, turn back now, son. No NTR, and no full-on Yuri. There might be slight Yuri—like girls kissing and stuff during threesomes—but it's not that kind of Yuri where the girls fall in love with each other while in a relationship with the MC.---

A top hacker was chosen by the Lord God to be reborn into countless worlds, always as an expendable villain.

With no free will, every world became a dead end. Every one of his lives ended tragically.

Finally, after wresting control of the Villain System, this ace hacker decided to enact revenge. Even if his very bones were rotten, he’d choose to occupy the very heights of morality, if only on the surface.

Thus, he would change his fate as an abused slag.

- Description from novelupdates

One day, You Huo and his famiIy was puIIed into an exam caIIed the GIobaI University Entrance Examination. Going through exams together with other unfortunate examinees, their Iives are put at stake and they can only Iive by passing each exam. However, something about these exams and the system controIIing it didn’t seem right — lt seemed to be trying to trap the examinees with ridiculous ruIes and strange questions…