Realius Regulus, the guardian of the Manipulator's Academy as well as the founder and boss of Real Delusion, was already aware of Haize's existence.
Not only Realius but the stronger S-class students such as Shirley Marrietto had noticed that a demon lord from another world had transmigrated to planet earth.
Haize was so arrogant that he kept on flaring his aura as if he was afraid that none of those mere humans had noticed his existence. As a demon lord, Haize had the right to be arrogant.
After all, in his world, Haize was considered one of the top strongest along with other demon lords. But it just so happened that he was unlucky enough to invade planet earth when a group of alien students was having a class task that was also considered a vacation for them.
