Cosplaying as Upper Rank One, I Transmigrated to the Jujutsu World

After attending a cosplay convention and removing half his makeup, Kirihara Tsukasa transmigrated to the world of Jujutsu Kaisen. His left face, complete with Upper Rank One's three eyes, could no longer be removed. He was a Special Grade cursed spirit who could use swordsmanship and Breathing Techniques. His right face was still perfectly clean, giving him the fresh-faced look of a high school student. But he himself was a hybrid of human and cursed spirit. In short, he wasn't human anymore. Kirihara Tsukasa: "..." After trying it out, he discovered he could shift between [100% office drone - 50% hybrid - 100% Upper Rank One (Special Grade cursed spirit version)]. Of course, there was a price. As an office drone, he needed human blood. As a Special Grade cursed spirit, he needed cursed spirit blood. The more cursed energy in the blood, the longer it lasted. At first, Kirihara Tsukasa asked a sorcerer, "Nanami, could I have some of your blood..." A certain white-haired man, eager to prove himself: "Huh? I'm the strongest! Why are you asking him?!" Kirihara Tsukasa: "Geto, could I..." "You're cheating on me again?!" Kirihara Tsukasa: "Gojo, first of all, this isn't cheating. Secondly, it's a miracle your blood sugar isn't through the roof..." He didn't want Gojo's blood because it was often sickeningly sweet. Kirihara Tsukasa found it strange that so many people and cursed spirits were clamoring to give him their blood. Text 1, from an intermediary: [Rare stock. Blood from someone with Heavenly Restriction. Want to try some?] Text 2, from a Zenin: [Tired of Gojo's blood yet? What about mine?] Text 3, from the one with stitches: [How about the blood of a human-cursed spirit hybrid? Interested? I can give you some if you want.] Text 4, from his white-haired classmate: [I had McDonald's today. I'm curious, will my blood taste like hamburgers?] "..." You'd think he was popular or something. Wait, since he was so popular, could he become... a double agent on all sides? Just thinking about it was thrilling! [Important] 1. OOC. 2. The central premise in the blurb has changed a lot. Please forgive me if it's not to your taste. 3. The protagonist is cosplaying as Michikatsu, but his personality is different. Don't read if that bothers you. 4. This won't be too long, around 300,000 to 400,000 characters (probably). Theme: Treat the world with love