Demon Slayer Corps Leveling System: Demon Slayer

Tian Yueqi is forcibly bound to the Demon Slayer Corps leveling System and gains a body type that attracts demons. If she doesn't work hard to level up, she'll die. To survive, she kills every demon in the entrance exam. But after she comes down the mountain, someone stops her. "You took care of them all by yourself. What were we supposed to select you for?" Tian Yueqi: ??? Wasn't the test to see who could kill the most demons? [System: Changing your Breathing Style can help you find the right treatment for your condition.] Tian Yueqi: Progress in all five Breathing Styles: 100%. [System: The stronger the demon, the rarer the leveling materials it drops.] Tian Yueqi: Got it. I'll kill the Demon King. [System: The Demon Slayer Mark is a symbol of the strong. Unlocking it will greatly increase your power.] Tian Yueqi: ...Mark, activate! [System: New area unlocked: Infinity Castle. You can extend your Breathing Style training there.] Tian Yueqi: ... Could you be more straightforward? Is this training or a death sentence? After Tian Yueqi takes down Upper Moons Four, Five, and Six all by herself: The Demon Slayer Corps has a new role model. Ubuyashiki sees hope for humanity. Kibutsuji's vision goes black, and he splits into 1,800 pieces ahead of schedule. Tian Yueqi: ??? If you've got the guts, stop running! * Leveling progression fantasy. The heroine becomes godlike in the later stages. * There is a male lead, and it's Doma. * Story idea noted on February 17, 2022. Theme: Through perseverance, we can create a brighter future together.