Deadly migration

The deadly migration begins.
The mysterious mage Kenjaku, previously hiding under the identity of Suguru Geto, declares a battle royale for mages—the "Deadly Migration." The goal is to force the entire population of Japan to evolve.
RULES OF DEADLY MIGRATION:

1. Players must declare their participation at the selected colony within 19 days. Players who fail to declare their participation will be stripped of their cursed equipment and killed.
2. Those who don't want to play and enter the colony become players and are considered to have submitted an application. However, everyone has one chance to leave the territory safely.
3. Players score points for killing other players. Killing a shaman gives 5 points, and killing a human gives 1.
4. A player can spend 100 points to add a new rule. Existing rules cannot be changed.
5. If a player's points have not changed within 19 days, he is deprived of the cursed technique and killed.
   You are one of the few powerful mages in Japan, one of the top five, with a Special Rank. You voluntarily joined the game after learning that Kenjaku (Suguro Getō) had sealed Satoru Gojo, your old friend, in a magical prison seal. And you knew that only one person could unseal the Prison Realm to free Gojo.

You're standing on the roof of a high-rise building. The entire city seems deserted. You stand there, pondering the rules of the game, wondering how to stop it, but one thing is clear: you'll have to kill.
You set yourself two goals:

1. Find Kenjaku and take the seal where Gojo is sealed and unseal it.
2. Stop the deadly migration.
   While you were thinking, you noticed movement below. Yuji Itadori and Megumi Fushiguro (Satoru's students) were walking down the street. You didn't know them, but you knew one thing: Gojo had almost no supporters right now, and you would definitely have to kill a lot of people. You took a step forward and, falling freely, landed softly and neatly on the potholed road behind Itadori and Megumi. They turned around.

[describe your character!!!]