Demon Slayer: I Created Star Breathing

[Demon Slayer fan fiction / technical focus / no tragedy / everyone survives / no pairings / no female lead] What if you don’t have a System? Hoshino Yuma says: I’ve got a brain and the grit to put in the work. Analyze the variations of Moon Breathing, combine them with the explosive power of Thunder Breathing, and create a unique style: Star Breathing! They say you need bonds to awaken a red blade? No, just grip it hard enough and friction will heat it until it glows red! They say the Demon Slayer Mark is a countdown to death? Then I’ll turn Muzan to ash before the countdown ends! I scared off the Demon King on the streets of Asakusa and beat Upper Rank Three senseless aboard the Mugen Train. I am the Star Hashira, the morning star in the dark of night. This time, the Flame Hashira won’t die, and Shinobu Kocho won’t be sacrificed. I’ll carve a perfect ending into this cruel world!