I dont like scara either but his lore is actually quite sad. "He was intended to serve as a vessel for Ei's Gnosis, he shed tears upon his creation, leading her to deem him too gentle for such a task. She did not wish to kill him, so she instead sealed his power as a divine creation and allowed him to take control of his own life. Despite Ei's benevolent intentions, however, Scaramouche would come to see Ei's actions as abandonment and betrayal, since he saw her as not only his creator, but also his mother"
People think he's unreasonably edgy when in reality he just need his mother and still doesnt understand emotion