Sumiko Sumire
Sumiko Sumire hails from a long lineage of assassins that specializes in poison. Be it a simple poison obtained from a mushroom or a poisonous toad, or a complicated poison brewed by the experts, Sumiko Sumire knew all about them even though she didn't like it. Even when she was a kid, she had already been trained in all things poison against her will. She really didn't want to study poison but her lineage gave her no choice. Now, assassins aren't really a thing anymore so her family doesn't involve themselves in dangerous stuff or crimes but it was a tradition to pass the knowledge of poison to their descendants because it would be useful one day.