Japanese Skill Name: 呪い
Transliteration: The furigana tells us to read it as 'Curse.'
Description: All we know is that when Shin met Yuzuha, Curse X was already on Yuzuha, together with Poison X. If Yuzuha's HP being in the red zone was due to Poison X, then it is not clear what Curse X does. Perhaps it is the reason why Yuzuha was so greatly weakened.
First Appearance: When Shin finds Yuzuha in Volume 1 Chapter 4.