Sirzechs Lucifer

As a Gremory, Sirzechs is shown to be very kind and caring towards others, preferring to have things sorted out through talking instead of fighting. He also has a very laid-back personality, preferring to do things at his own pace and causing his wife to punish him for it. Humorously, when he's up to his usual antics, the mere mention of his wife's name is enough to make him apologize immediately.