Awakening: God-Tier Adaptive System - Chapter 4: Backgrounds

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Commandery Princess Gu Shengyin of Qinghe had died.Her beauty eclipsed Jinghua, and her talents were renowned throughout the world, yet she lost to a woman inferior to her in every aspect.It wasn't until after her death that Gu Shengyin realized she was nothing more than the protagonist of a supporting character's counterattack story, doomed to be cannon fodder for a transmigrated lady……In the pure white space, Gu Shengyin emotionlessly received the memories transmitted to her by the System…...System: “In this day and age, the supporting character must turn over a new leaf, the cannon fodder must counterattack, and the extras must make their presence felt. As the female lead, you are their biggest obstacle.”Gu Shengyin's eyes glinted with cold light. Her smile was stunningly beautiful. “Then let's see: Who, indeed, should be the stumbling block that gets kicked away, and who, in the end, will be the ultimate winner!”Those supporting characters and cannon fodders who wish to eliminate the female lead and rise to the top, have you thought about how you want to die?This story is a sweet romance, 1V1.

Kai is refused help from the president and thrown back into ground zero, where he meets a man whom he shows kindness to. As an act of repayment Kai is taken to the under tunnel of the city where he discovers a secret office belonging to his father. The stranger seemed to know what he was looking for after some time he handed over a box to Kai. A melodic robo voice came from the box -|DNA ACTIVATION VERIFIED|- -|ASTRAL NODE IS ONLINE|- -|SYSTEM HAS BEGUN ACTIVATING|- -|AWAITING MANUAL OVERRIDE TO TURN ON SYSTEM|- Kai is gifted a rare astral node and resolves to join the academy to save his dying sister from the F-X7 disease and also escape the life of poverty they were stuck in. -|PASSWORD CORRECT|- -|MANUAL OVERRIDE SUCCESSFUL|- -|SYSTEM IS UPDATING, PLEASE BE PATIENT|- -|SYSTEM UPDATE IS COMPLETE|- -|SYSTEM IS ONLINE|- Joining the academy does no guarantee his success since he has no powers. But he must survive since that has been his goal after being sold to slavery. -|USER: KAI HALSTEN|- -|RACE: HUMAN|- -|GENDER: MALE|- -|LEVEL: ONE|- -|EXP: 0/100|- -|HP: 10/10|- -|BEGINNING BONDING|-

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