MTL - I Am the Legendary BOSS - Chapter 642 High-dimensional Rubik's cube? (Thanks: I love Loli's rewards)

It was just one of those ordinary college class sessions when all of a sudden, texts and quest cards started popping up in the air.

While everybody is flustered by the strange situation, all the lights go dark and the lecture room is engulfed in pitch darkness. Panicked, everybody is afraid of reaching out and taking the quest cards, but not the main character, Seong-woo: He instinctively realizes that he has to pick a card to survive, and he chooses to become a necromancer.

Soon after, a tutorial quest appears, and the entire school turns chaotic. Suddenly, goblins pop out everywhere and start slaughtering people. Survivors find it hard to adjust themselves to all the sudden changes, but Seong-woo overpowers one of the goblins by using his necromancy skill and starts to complete the quest given to him.

Seong-woo continues to grow his power and so does a number of his followers. He is surrounded by the forces of death that vow loyalty to him, as well as talented followers and trustful colleagues, but he is challenged by numerous villains in addition to a system that threatens to degenerate all of humanity.

In a world that is facing a change that it has never experienced before, a necromancer destroys everything with his committed forces

Survival is easy. Life is very difficult. My family wants not to live in humility, but to live a proud and glorious life. My family, will not be slaves!

- Description from Novelupdates

Kein Rosenguard, a reincarnated girl who suddenly became the crown princess's personal knight!

She fulfills her duties at the side of her highness, Princess Rosarie von Goldheart. A rebellious princess who would rather live her life as dressing as a commoner than attending fancy balls in the castle.

Kein decided she would spend her whole life protecting her Royal Highness but will she succeed in her mission and set aside her growing feelings for her?

Art is not mine! Only the story! Please tell me if you know the artist so I can credit them!

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.