Disguised As A Boy To Attend Belmont High School - Chapter 15: Fractured Alliance

A master assassin transmigrates into an interstellar era.

Other players were responsible for competing in the e-sports arena, while he was responsible for stringing up and beating up the other players.

His sword was hidden during the peak of day, and he was a gentleman who arrived in a flash of light;
As a vanguard of the eternal night, he was the variable between life and death in the world.

“As you know, the Star League’s difficulty levels are arranged in this way:
Paradise < Simple < Normal < Difficult < Nightmare < Hell < [Tyron Odin]”

- Description from Novelupdates

He was the scion cast aside by a powerful family, and he had hoped to return to a peaceful life in the city, but unexpectedly, trouble arose once more!

I transmigrated into the gacha game I abandoned for 10 years.But, the state of the heroes I raised is strange.

The ordinary 18-year-old Edo, during a nighttime walk, finds himself in a fantasy world where he gains a mysterious power that could shape his destiny.