Demon Slayer: My Name Is Kunikuni, and I’m the Dragon Pillar

[No marriage + single + no System + breaking away from the Ghost King] Tsugikuni: this surname represents both the glory of the beginning and the tragedy of the end. She inherited the name Tsugikuni. She was Tsugikuni Michikatsu’s younger sister, a swordswoman who mastered a brand-new “Dragon Breathing,” and stood at the pinnacle of the Demon Slayer Corps as the “Dragon Pillar.” Yet she developed the same strange illness as her mother. As she lay on the brink of death, she saw a demon, but couldn’t bring herself to raise her sword, because he was her beloved older brother. Her brother Tsugikuni Michikatsu, an obsessive little sister fan, forcibly turned her into a demon. With no choice, she had to retire and become another Demon King. When Kokushibo saw Doma being disgusting toward his younger sister: Kokushibo: You bastard, that’s my sister! Get lost!