MTL - Tokyo Video Game Tycoon - Chapter 990 Linear trigger

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates

While on a school field trip in the Czech Republic, Kang Hyuk happens to stumble into a shop called “Archmage.” To his disbelief, the shop is actually owned by an archmage… from another world! Forced to become the Archmage’s disciple, Kang Hyuk is punted into the Kallian Continent, where might and magic overwhelm and wyverns fly high in the sky…

In this world, people are either sword-wielding knights, magic-wielding mages, or spirit-wielding summoners. There hasn’t been anyone yet who can do all three… until now.

“I'm a fox girl, Master!”

Leveling up is not tedious if you have adorable girls by your side!

Leon started his second life with a challenging and callous test to receive a system, only to begin his first steps in another world with an adorable fox girl by his side.

How would these two start their journey, and who else will join them? What will Leon achieve in a different world? He may find more than just new happiness.

Accompanied by all kinds of crisis and despair, was the arrival of mankind’s first significant superhero.