Demon Slayer: the Strongest Pillar Level, Inherits the Sun and Moon Breathing Method

(Based on the original work, some plots and settings that overlap with the timeline have been slightly modified, light spray~) [Plot direction + no system + decisive killing + Demon Slayer fandom + no misery to bask in the sun] After Guoyuan died, in order to avoid the pursuit of Heishimou, a descendant of his family changed their surname to Yichuan and moved away from the world to seek refuge. A hundred years have passed, and the Yichuan family has long declined. Fortunately, they welcomed a tribesman with innate markings: Igawa Sorata. With his extraordinary talent, Sorata Ekawa mastered the two breathing methods of the sun and moon at the same time, and exploded with amazing potential. The family also sees hope in him, so... The head of the Yichuan family: "The task of defeating Iwakatsu Jiguo and bringing him back to the clan will be left to you!" Facing the heavy mountains ahead, Igawa Sorata solemnly patted his chest: "If you keep it on me, I will definitely mess it up (that's weird)!"