Lucifer

Once the highest-ranking archangel in the heavens, Lucifer willingly cast himself from the divine realm out of sheer boredom, joining the Demon King's elite Four Generals. Settling in Japan under the alias Hanzou Urushihara, he holes up in the Demon King's cramped apartment, spending his days gaming and dodging any semblance of household responsibility—a textbook modern NEET. Yet beneath that insufferable laziness lies an unparalleled mastery of hacking, allowing him to deliver critical intelligence at pivotal moments and prove himself an indispensable, if reluctant, asset to the team.