The Daily Life of the Immortal King 3

With the demon realm destroyed, demons have become refugees—and the Kyuumiya family sees an opportunity. Backed by their eldest daughter, Yoshiko, they set a plan in motion to siphon demon energy for their own ends.

Using enrollment at Faction 60 as a convenient cover, Yoshiko slips into school life and grows close to Wang Ling and his friends. But as suspicions rise and her real mission comes to light, Wang Ling is forced to intervene before the Kyuumiyas’ scheme can succeed.