"I pay no heed to their chatter. If they want me to swear an oath, or if they want a trial by ordeal, let them fix a time - they cannot make any ordeal so harsh I will not undergo it."
Socially awkward, fidgety, and downcast, Iseult often keeps to herself on the bus. She often goes with the decisions of others, rarely voicing her own feelings about matters - even when they involve her own wellbeing. She rarely smiles, generally just maintaining a far-away look as she stares at the ground. Her comments, when offered, often have nothing to do with the conversation.
When interests of hers are brought up, however, her personality will flip a total 180. If allowed to, she'll ramble on and on about invertebrates and their medical uses, brightly smiling. While her quiet nature makes her fade into the background of the other Sinners, her medical knowledge is second to none on the bus. She's especially knowledgeable on poisons, being capable of both creating them and curing those who have been poisoned. She's greatly fond of horseshoe crabs.
One area where she'll loudly proclaim her feelings, however, is matters of animal cruelty. She'll defend animals at the risk of her own self, talking against those she would otherwise quietly resign to making decisions for her. It appears that she's had an instance in the past where she defended Buck, forming a close bond between them.
Iseult is often seen texting during drives, smiling brightly. This is one of the rare instances, outside of talking about her interests or interacting with Buck, that she appears genuinely happy. She has a habit of bringing weird bugs and invertebrates onto the bus, trying to make them the mascot of the bus. Arthur, her seat neighbor, is not fond of this habit, given that they occasionally end up on him.
Apparently, her bow, Failnot, used to belong to someone she's close to.
"Golden Chime of Beatitude" - T-04-15
Iseult owns a strange, colorful stuffed dog named "Petitcreiu". It rarely leaves her room, and thus, is rarely seen by the other Sinners. It's apparently been registered as Abnormality T-04-15 within Limbus Company's database, but it's yet to demonstrate any semblance of life. One Sinner, however, has claimed seeing unusual whites to its eyes once, its pupils flicking towards them. Their opinion was promptly discarded as simply being "part of their imagination" when Petitcreiu never showed such behavior during testing.
Petitcreiu's fur seems to change color upon every new observation, and its soft, silky fur brings warmth and happiness to those who touch it. While its patterns may change, the teardrop-like spot under its left eye is consistent. Apparently, a bell was present within a few of the tests, and its chimes wiped away all feelings of sorrow within those who heard it. However, it's since been torn off.
Arthur | Pooh | Cu Chulainn | Griflet