Temporary Marking [ABO]

Shen Yushu only knows how to wield a sword. A naturally cold-blooded general, he was poisoned to death at the age of eighteen, then reborn in the interstellar era, where he was taken in by a young man named Qiao. Qiao tells him that in this world, humans are classified by the ABO system, and have also developed atavistic traits. Almost everyone has them, except for the insect races. Shen Yushu is only half convinced. As for those mysterious drugs called suppressants, he doesn't take a single one. Not long after, the military academy opens admissions. Seeing the mechs gleaming with metallic sheen at the recruitment grounds, Shen Yushu's eyes light up. "Can these use swords?" Qiao: "They can, but..." When Shen Yushu cleanly cuts off a mech's arm for the fifth time, the cash-strapped academy can take no more. "Congratulations, you're accepted." A man watching the spectacle smiles faintly. "Would you mind accepting me, too?" The principal's eye twitches. "Major Erwen, I have a weak heart. Don't joke around." Erwen smiles. "For the sake of your heart, I wasn't joking." After Shen Yushu repeatedly ignores him, Erwen decides there's no rush. One day, he takes his beast form to bask in the sun, only to be caught in the act. They stare at each other for a full five seconds. Shen Yushu suddenly reaches out, strokes his fur, and meows expressionlessly. Erwen freezes, then rubs against his palm. "Meow~" One night, burning with heat, Shen Yushu finds the cat in his arms has turned into Erwen. After learning from him that his body is special, Shen Yushu says coldly, "Turn back." Ridiculously powerful, cold-blooded Boy-next-door uke VS domineering, cool, scheming major and white leopard seme P.S. Screenshot archive Theme: No one is born cold-blooded. What they need is love and growth