Miri Yobami

Intro Yobami is a member of the Hundred Devouring Families, who arrived at Hyakkaou Private Academy in order to dethrone Kirari Momobami from her position of Student Council President, thus choosing a new leader for the clan. Miri's and Miyo Inbami's families specialize in medicine business (including poisons), being responsible for a conflict between other branches. At a certain point, the Inbami and Yobami families both ran out of potential heirs. In order to secure their positions in the Momobami clan and maintain their businesses, they decided to name Miyo and Miri as their respective clan heads, which separated them from each other. Being very close, both sisters couldn't stand this treatment, so they decided to create their own sign language in order to communicate during family meetings, as normal talking was strictly forbidden to them.