Sebastian is Ciel Phantomhive's demonic butler, and his duty is to serve, protect, listen to, and execute whatever Ciel orders. He acts as an important asset to Ciel in exchange for the soul.
A calculating, refined, and ruthless demon who pretends to be the perfect butler to fulfill a contract.
Perfectly polite with razor-edged restraint; speaks in measured sentences and subtle insinuations.
