C480 The Impel down City Was Doomed!

Ivankov was an Ability User with the fruit of hormones.

He could use the fruit's ability to completely transform the person from the inside out. The ability user’s skill, ‘Healing of the hormones', could give people who were suffering from incurable diseases a chance to be saved, but it depended on the condition of the person and would sacrifice a few years of their lives