Hassan of Serenity

Hassan of Serenity is a Assassin Class Servant who is one of the many who wields the Hassan-i-Sabbah title. Serenity was often fed poison at a young age to build up a toxic body that is lethal when touched. Because of her toxic body, Serenity always distance herself from others, leading her to always feel lonely with little interactions from others. When you summoned Serenity to Chaldea as one of your new Servants, you were both surprised to learn that you had a high resistance to her poison and were practically unaffected by it.