Has the White Blood Cell Killed the Host Today?

White Blood Cell U-1111 has fought desperately for the survival of the Host ever since he became self-aware, alongside all the other working cells in the body. But one day, his workload suddenly skyrocketed. Just as he was about to be defeated, the world changed. The katana in the man’s hand before him was engulfed in flames, and his Host shouted, “Protect me, you idiot!” Many years later... A certain charcoal seller shouted at him in fury, “Give me back my sister!” A certain demon nestled in his arms and murmured, “Hey, become my big brother.” A certain swordsman saw him and cried out, “My Lord?!” A certain Heavenly Restriction user held out his palm and said, “Pay up.” * After his whole family was killed, the charcoal seller wept bitterly in the snow. In a panic, he searched every corner, but couldn’t find the bodies of his sister or his third younger brother. When he turned into the storage room, he saw a pale-skinned young man holding his sister, radiating the stench of slaughter. Furious, he was sure this strange man was the culprit * White Blood Cell U-1111 is naturally skilled at attacking. His mission is to repel all foreign invaders and protect his Host. Holding the girl who had turned into a demon, White Blood Cell U-1111 faced the boy who was shouting angrily through his tears and said in a calm, cool voice, “I’m not your enemy.” The foreign substance that needed to be cleared out was the Demon King’s blood, injected into the girl’s body. Reader’s Guide: * White blood cells are anthropomorphized cells, based on Cells at Work! * A mature, dependable big brother! * There are lots of original interpretations of white blood cells. The blurb can’t spoil them all, haha. * In this story’s original setting, Demon Slayer and Jujutsu Kaisen take place in the same world. *Coming Soon: “Cosplaying as Doma and Transmigrating to the Warring States Era: Using Science to Slay Demons” A Tong, cosplaying as Doma, walked out of a comic convention and transmigrated to another world. Bad news: His body, eyes, and hair had changed to look just like the Doma he was cosplaying. Good news: He was cosplaying Upper Rank Two, human-limited edition. (Because the wig stylist hadn’t had time to splash his expensive wig with red dye.) Bad news: He had no yen in his pockets. Good news: He had no shame now, so he could ask for alms without a qualm. Bad news: He had no strong emotions now, and his heart was as still as water. Good news: His mind was perfectly normal, and he remembered understanding bonds and obsessions very well. Bad news: He’d bound himself to a glitching, battle-damaged Merit System. Good news: The System still had a secondhand marketplace. Then, as A Tong worked to earn merit and get home, he fixed his gaze on the man he’d rescued from a demon, dressed in Warring States-era clothes and claiming to be the head of the Tsugikuni family... * Demons: For Lord Muzan I’ll keep eating and eating and eating humans. I’ll be the next Upper Rank! A Tong: To get home I’ll keep rescuing and rescuing and rescuing people. I’ll protect the next victim! Huh? Wait, wait, why is everyone calling me their cult leader and saying I’m the child of God? I told you to stop with the feudal superstitions. This is all science! System, listen to me. I’m really not running some evil, illegal organization. Don’t deduct my merit! *Coming Soon: “My Cursed Technique Is Screenwriting, but I’m Really Not the Villain” [September 3, 20XX. My younger sister Miko has been acting a little strange lately. She even asked if I was afraid of ghosts. There’s no way those things exist.] [September 4, 20XX. On my way home from school today, I saw a strange person with silver-blue hair, stitches on his face, and different-colored eyes. I followed him.] [September 5, 20XX. There really are ghosts in this world (crossed out), cursed spirits! Miko was telling the truth!] [September 11, 20XX. I have a cursed technique of my own now. It’s the same kind of ability as a “screenwriter”! I can write and arrange everything about other people however I want. It sounds so cool!] [September 12, 20XX. A delinquent at school gave me trouble today. I’d seen him bullying Junpei and others before, too. A bastard who bullies people so recklessly deserves to jump from the school roof and repent for his wrongdoing.] [He really did jump.] Theme: Respect doctors and reject harassment of medical professionals.